Modulators of mas-related g-protein receptor x2 and related products and methods

ABSTRACT

Methods are provided for modulating MRGPR X2 generally, or for treating a MRGPR X2 or a MRGPR X2 ortholog dependent condition, more specifically, by contacting the MRGPR X2 or the MRGPR X2 ortholog by administering to a subject in need thereof, respectively, an effective amount of a compound having structure (I):or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein W, Z, R1, R2, R3, R4, R5, R6 and Rx are as defined herein. Pharmaceutical compositions containing such compounds, as well as the compounds themselves, are also provided.

BACKGROUND Technical Field

The invention relates to modulators of the Mas-related G-protein coupled receptor X2, to products containing the same, as well as to methods of their use and preparation.

Description of the Related Art

Mas-related G-protein receptors (MRGPRs) are a group of orphan receptors with limited expression in very specialized tissues. Very little is known about the function of most of these receptors. There are eight related receptors in this class expressed in humans, only four of which have readily identifiable orthologs in other species (i.e., MRGPR D, E, F and G). Some of the other four receptors (MRGPR X1, X2, X3 and X4) have counterparts in higher species including dogs and horses, but they do not have a single corresponding ortholog in rodents.

BRIEF SUMMARY

This invention is based, in part, on the identification that MRGPR X2 or MRGPR X2 ortholog modulator compounds. MRGPRX2 corresponds functionally to mouse mrgprb2 and dog MRGPRX2 in mast cells. MRGPR X2 and its ortholog receptors mediate disorders including pseudo-allergic reactions including pseudo-allergic drug reactions, chronic itch (e.g., pruritus), inflammation disorders, pain disorders, skin disorders, wound healing, cardiovascular disease, and lung inflammation/COPD. In one embodiment, both mrgprb2 and MRGPR X2 expression is largely restricted to mast cells. Mast cells are innate immune cells that primarily reside at sites exposed to the external environment, such as the skin, oral/gastrointestinal mucosa and respiratory tract. Mast cells express numerous receptors that respond to mechanical and chemical stimuli. Upon activation, classically by IgE, mast cells release pre-formed mediators from granules (e.g., histamine, proteases, and heparin) and newly synthesized mediators (e.g., thromboxane, prostaglandin D2, leukotriene C4, tumor necrosis factor alpha, eosinol chemotactor factor, and platelet-activating factor) that elicit allergic and inflammatory responses. Histamine dilates post-capillary venules, activates the endothelium, and increases blood vessel permeability. This causes local edema, warmth, redness, and chemotaxis of other inflammatory cells to the site of release. Histamine also contributes to neuronal sensitization that leads to pain or itch. MRGPR X2 and mrgprb2 mediate immunoglobulin E (IgE) independent activation of mast cells. MRGPR X2 and mrgprb2 are receptors for (or sensitive to activation by) various ligands, including basic secretagogues (small cationic molecules), certain drugs (e.g., cationic peptidergic drugs), neuropeptides, and antimicrobial peptides, and thus are important for non-IgE mediated pseudo-allergic reactions, inflammation, pain, and itch conditions. Mast cells may also contribute to the progression of autoimmune disorders by promoting chronic inflammation in the local tissue microenvironment and ultimately polarizing toward a T_(h)17 immune response. Thus, modulating MRGPR X2 or MRGPR X2 ortholog allows for treatment of autoimmune diseases, pseudo-allergic drug reactions, pain, itch, and inflammatory disorders such as inflammatory bowel disease, urticaria, sinusitis, asthma, rosacea, endometriosis, and other MRGPR X2 or MRGPR X2 ortholog dependent conditions as explained in more detail below.

In one embodiment is provided, a method of treating a MRGPR X2 or a MRGPR X2 ortholog dependent condition by administering to a subject in need thereof an effective amount of the pharmaceutical composition of the modulator compounds of the present invention.

Accordingly, in an embodiment, is provided a compound having structure (I):

or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein W, Z, R¹, R², R³, R⁴, R⁵, R⁶ and R^(x) are as defined herein.

In other embodiments, compounds are provided having formula (Ia), (Ib), (Ic), (Id), (1e) or (If) as defined herein, or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof.

In yet other embodiments, pharmaceutical compositions are provided comprising a carrier or excipient and a compound having structure (I), or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof.

In specific embodiments, pharmaceutical compositions are provided comprising substructures of structure (I) with formula (Ia), (Ib), (Ic), (Id), (1e) or (If) as defined herein or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof.

In another embodiment, methods are provided for treating an MRGPR X2 or a MRGPR X2 ortholog dependent condition by administering to a subject in need thereof an effective amount of a compound having structure (I), or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof.

In some embodiments, the MRGPR X2 or a MRGPR X2 ortholog dependent condition is one or more of a pseudo-allergic reaction, itch associated condition, a pain associated condition, an inflammation-associated condition, or an autoimmune disorder.

In one embodiment, the methods of treating the MRGPR X2 or the MRGPR X2 ortholog dependent condition are provided which comprise administering an effective amount of a compound of structure (I) with formula (Ia), (Ib), (Ic), (Id), (1e) or (If) as defined herein, or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof.

In another embodiment, compounds are provided having one or more of the structures disclosed herein, or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof.

DETAILED DESCRIPTION

As mentioned above, the invention relates to modulators of the MRGPR X2, to products containing the same, as well as to methods of their use and preparation. This invention is based, in part, on the identification MRGPR X2 modulator compounds. Both mrgprb2 and MRGPR X2 are expressed in mast cells and dorsal root ganglia. Both MRGPR X2 and mrgprb2 are receptors for (or sensitive to activation by) a diverse group of ligands, including basic secretagogues, certain drugs, neuropeptides, antimicrobial peptides, and thus are important for pseudo-allergic reactions, itch, pain, or inflammatory disorders upon exposure.

MRGPRs appear to be sensory receptors that recognize their external environment to exogenous or endogenous signals/chemicals. These receptors likely respond to multiple chemical ligands/agonists. For example, MRGPR X2 recognizes Compound 48/80, Substance P, mastoparan, icatibant, ciprofloxacin, and tracurium, as agonist signals. In certain embodiments, molecules of this invention modulate MRGPR X2 by functioning as inverse agonists that are capable of blocking multiple chemical entities, and/or as competitive antagonists that can specifically block individual ligands. In one embodiment, such modulations are selective against other MRGPRs, such as MRGPR X1, X3 and/or X4.

Definitions

As used herein, the following terms have the meaning defined below, unless the context indicates otherwise.

“Modulating” MRGPR X2 means that the compound interacts with the MRGPR X2 in a manner such that it functions as an inverse agonist to the receptor, and/or as a competitive antagonist to the receptor. In one embodiment, such modulation is partially or fully selective against other MRGPRs, such as MRGPR X1, X3 and/or X4.

“MRGPR” refers to one or more of the Mas-related G protein coupled receptors, which are a group of orphan receptors with limited expression in very specialized tissues (e.g., in mast cells and dorsal root ganglia) and barrier tissues. There are eight related receptors in this class expressed in humans, only 4 of which have readily identifiable orthologs in other species (i.e., MRGPR D, E, F and G). The other four receptors (MRGPR X1, X2, X3 and X4) have no counterpart, based on homology, in non-human species.

“MRGPRX2,” also referred to as “MRGX2,” or “MGRG3,” refers to a member of the MRGPR family that is expressed on mast cells and capable of mediating IgE independent activation (e.g., mast cell degranulation) in response to ligand binding. An exemplary human MRGPRX2 amino acid sequence is set forth in Uniprot Q96LB1.

“Effective amount” refers to a quantity of a specified agent sufficient to achieve a desired effect in a subject being treated with that agent. Ideally, an effective amount of an agent is an amount sufficient to inhibit or treat the disease without causing substantial toxicity in the subject. The effective amount of an agent will be dependent on the subject being treated, the severity of the affliction, and the manner of administration of the pharmaceutical composition. Methods of determining an effective amount of the disclosed compound sufficient to achieve a desired effect in a subject will be understood by those of skill in the art in light of this disclosure.

“Alkyl” means a saturated or unsaturated straight chain or branched alkyl group having from 1 to 8 carbon atoms, in some embodiments from 1 to 6 carbon atoms, in some embodiments from 1 to 4 carbon atoms, and in some embodiments from 1 to 3 carbon atoms. Examples of saturated straight chain alkyl groups include, but are not limited to, methyl, ethyl, n-propyl, n-butyl, n-pentyl-, n-hexyl, n-heptyl, and n-octyl groups. Examples of branched alkyl groups include, but are not limited to, isopropyl, iso-butyl, sec-butyl, t-butyl, neopentyl, isopentyl, and 2,2-dimethylpropyl groups. An unsaturated alkyl includes alkenyl and alkynyl as defined below.

“Alkenyl” means a straight chain or branched alkenyl group having from 2 to 8 carbon atoms, in some embodiments from 2 to 6 carbon atoms, in some embodiments from 2 to 4 carbon atoms, and in some embodiments from 2 to 3 carbon atoms. Alkenyl groups are unsaturated hydrocarbons that contain at least one carbon-carbon double bond. Examples of lower alkenyl groups include, but are not limited to, vinyl, propenyl, butenyl, pentenyl, and hexenyl.

“Alkynyl” means a straight chain or branched alkynyl group having from 2 to 8 carbon atoms, in some embodiments from 2 to 6 carbon atoms, in some embodiments from 2 to 4 carbon atoms, and in some embodiments from 2 to 3 carbon atoms. Alkynyl groups are unsaturated hydrocarbons that contain at least one carbon-carbon triple bond. Examples of alkynyl groups include, but are not limited to, ethynyl, propynyl, butynyl, pentynyl, and hexynyl.

“Halo” or “halogen” refers to fluorine, chlorine, bromine, and iodine.

“Hydroxy” refers to —OH.

“Cyano” refers to —CN.

Amino refers to —NH₂, —NHalkyl or N(alkyl)₂, wherein alkyl is as defined above. Examples of amino include, but are not limited to —NH₂, —NHCH₃, —N(CH₃)₂, and the like.

“Haloalkyl” refers to alkyl as defined above with one or more hydrogen atoms replaced with halogen. Examples of lower haloalkyl groups include, but are not limited to, —CF₃, —CHF₂, and the like.

“Alkoxy” refers to alkyl as defined above joined by way of an oxygen atom (i.e., —O-alkyl). Examples of alkoxy groups include, but are not limited to, methoxy, ethoxy, n-propoxy, n-butoxy, isopropoxy, sec-butoxy, tert-butoxy, and the like.

“Haloalkoxy” refers to haloalkyl as defined above joined by way of an oxygen atom (i.e., —O-haloalkyl). Examples of lower haloalkoxy groups include, but are not limited to, —OCF₃, and the like.

“Cycloalkyl” refers to alkyl groups forming a ring structure, which can be substituted or unsubstituted, wherein the ring is either completely saturated, partially unsaturated, or fully unsaturated, wherein if there is unsaturation, the conjugation of the pi-electrons in the ring do not give rise to aromaticity. Examples of cycloalkyl include, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, and cyclooctyl groups. In some embodiments, the cycloalkyl group has 3 to 8 ring members, whereas in other embodiments the number of ring carbon atoms range from 3 to 5, 3 to 6, or 3 to 7. Cycloalkyl groups further include polycyclic cycloalkyl groups such as, but not limited to, norbornyl, adamantyl, bornyl, camphenyl, isocamphenyl, and carenyl groups, and fused rings such as, but not limited to, decalinyl, and the like.

“Aryl” groups are cyclic aromatic hydrocarbons that do not contain heteroatoms. Representative aryl groups include, but are not limited to, phenyl, azulenyl, heptalenyl, biphenyl, indacenyl, fluorenyl, phenanthrenyl, triphenylenyl, pyrenyl, naphthacenyl, chrysenyl, biphenylenyl, anthracenyl, and naphthyl groups. In some embodiments, aryl groups contain 6-14 carbons in the ring portions of the groups. The terms “aryl” and “aryl groups” include fused rings wherein at least one ring, but not necessarily all rings, are aromatic, such as fused aromatic-aliphatic ring systems (e.g., indanyl, tetrahydronaphthyl, and the like). In one embodiment, aryl is phenyl or naphthyl, and in another embodiment aryl is phenyl.

“Carbocycle” refers to alkyl groups forming a ring structure, which can be substituted or unsubstituted, wherein the ring is either completely saturated, partially unsaturated, or fully unsaturated, wherein if there is unsaturation, the conjugation of the pi-electrons in the ring may give rise to aromaticity. In one embodiment, carbocycle includes cycloalkyl as defined above. In another embodiment, carbocycle includes aryl as defined above.

“Heterocycle” refers to aromatic and non-aromatic ring moieties containing 3 or more ring members, of which one or more is a heteroatom such as, but not limited to, N, O, S, or P. In some embodiments, heterocyclyl include 3 to 20 ring members, whereas other such groups have 3 to 15 ring members. At least one ring contains a heteroatom, but every ring in a polycyclic system need not contain a heteroatom. For example, a dioxolanyl ring and a benzdioxolanyl ring system (methylenedioxyphenyl ring system) are both heterocyclyl groups within the meaning herein.

Heterocyclyl groups also include fused ring species including those having fused aromatic and non-aromatic groups. A heterocyclyl group also includes polycyclic ring systems containing a heteroatom such as, but not limited to, quinuclidyl, and also includes heterocyclyl groups that have substituents, including but not limited to alkyl, halo, amino, hydroxy, cyano, carboxy, nitro, thio, or alkoxy groups, bonded to one of the ring members. A heterocyclyl group as defined herein can be a heteroaryl group or a partially or completely saturated cyclic group including at least one ring heteroatom. Heterocyclyl groups include, but are not limited to, pyrrolidinyl, furanyl, tetrahydrofuranyl, dioxolanyl, piperidinyl, piperazinyl, morpholinyl, pyrrolyl, pyrazolyl, triazolyl, tetrazolyl, oxazolyl, isoxazolyl, thiazolyl, pyridinyl, thiophenyl, benzothiophenyl, benzofuranyl, dihydrobenzofuranyl, indolyl, dihydroindolyl, azaindolyl, indazolyl, benzimidazolyl, azabenzimidazolyl, benzoxazolyl, benzothiazolyl, benzothiadiazolyl, imidazopyridinyl, isoxazolopyridinyl, thianaphthalenyl, purinyl, xanthinyl, adeninyl, guaninyl, quinolinyl, isoquinolinyl, tetrahydroquinolinyl, quinoxalinyl, and quinazolinyl groups.

In one embodiment, heterocyclyl includes heteroaryl.

“Heteroaryl” refers to aromatic ring moieties containing 5 or more ring members, of which, one or more is a heteroatom such as, but not limited to, N, O, and S. Heteroaryl groups include, but are not limited to, groups such as pyrrolyl, pyrazolyl, pyridinyl, pyridazinyl, pyrimidyl, pyrazyl, pyrazinyl, pyrimidinyl, thienyl, triazolyl, tetrazolyl, triazinyl, thiazolyl, thiophenyl, oxazolyl, isoxazolyl, benzothiophenyl, benzofuranyl, indolyl, azaindolyl, indazolyl, benzimidazolyl, azabenzimidazolyl, benzoxazolyl, benzothiazolyl, benzothiadiazolyl, imidazopyridinyl, isoxazolopyridinyl, thianaphthalenyl, purinyl, xanthinyl, adeninyl, guaninyl, quinolinyl, isoquinolinyl, tetrahydroquinolinyl, tetrahydroisoquinolinyl, quinoxalinyl, and quinazolinyl groups. The terms “heteroaryl” and “heteroaryl groups” include fused ring compounds such as wherein at least one ring, but not necessarily all rings, are aromatic, including tetrahydroquinolinyl, tetrahydroisoquinolinyl, indolyl, and 2,3-dihydro indolyl.

“Isomer” is used herein to encompass all chiral, diastereomeric or racemic forms of a structure (also referred to as a stereoisomer, as opposed to a structural or positional isomer), unless a particular stereochemistry or isomeric form is specifically indicated. Such compounds can be enriched or resolved optical isomers at any or all asymmetric atoms as are apparent from the depictions, at any degree of enrichment. Both racemic and diastereomeric mixtures, as well as the individual optical isomers can be synthesized so as to be substantially free of their enantiomeric or diastereomeric partners, and these are all within the scope of certain embodiments of the invention. The isomers resulting from the presence of a chiral center comprise a pair of nonsuperimposable-isomers that are called “enantiomers.” Single enantiomers of a pure compound are optically active (i.e., they are capable of rotating the plane of plane polarized light and designated R or S).

“Isolated optical isomer” means a compound which has been substantially purified from the corresponding optical isomer(s) of the same formula. For example, the isolated isomer may be at least about 80%, at least 80% or at least 85% pure by weight. In other embodiments, the isolated isomer is at least 90% pure or at least 98% pure, or at least 99% pure by weight.

“Substantially enantiomerically or diastereomerically” pure means a level of enantiomeric or diastereomeric enrichment of one enantiomer with respect to the other enantiomer or diastereomer of at least about 80%, and more specifically in excess of 80%, 85%, 90%, 95%, 98%, 99%, 99.5% or 99.9%.

The terms “racemate” and “racemic mixture” refer to an equal mixture of two enantiomers. A racemate is labeled “(±)” because it is not optically active (i.e., will not rotate plane-polarized light in either direction since its constituent enantiomers cancel each other out). All compounds with an asterisk (*) adjacent to a tertiary or quaternary carbon are optically active isomers, which may be purified from the respective racemate and/or synthesized by appropriate chiral synthesis.

A “hydrate” is a compound that exists in combination with water molecules. The combination can include water in stoichiometric quantities, such as a monohydrate or a dihydrate, or can include water in random amounts. As the term is used herein a “hydrate” refers to a solid form; that is, a compound in a water solution, while it may be hydrated, is not a hydrate as the term is used herein.

A “solvate” is similar to a hydrate except that a solvent other that water is present. For example, methanol or ethanol can form an “alcoholate”, which can again be stoichiometric or non-stoichiometric. As the term is used herein a “solvate” refers to a solid form; that is, a compound in a solvent solution, while it may be solvated, is not a solvate as the term is used herein.

“Isotope” refers to atoms with the same number of protons but a different number of neutrons, and an isotope of a compound of structure (I) includes any such compound wherein one or more atoms are replaced by an isotope of that atom. For example, carbon 12, the most common form of carbon, has six protons and six neutrons, whereas carbon 13 has six protons and seven neutrons, and carbon 14 has six protons and eight neutrons. Hydrogen has two stable isotopes, deuterium (one proton and one neutron) and tritium (one proton and two neutrons). While fluorine has a number of isotopes, fluorine-19 is longest-lived. Thus, an isotope of a compound having the structure of structure (I) includes, but not limited to, compounds of structure (I) wherein one or more carbon 12 atoms are replaced by carbon-13 and/or carbon-14 atoms, wherein one or more hydrogen atoms are replaced with deuterium and/or tritium, and/or wherein one or more fluorine atoms are replaced by fluorine-19.

“Salt” generally refers to an organic compound, such as a carboxylic acid or an amine, in ionic form, in combination with a counter ion. For example, salts formed between acids in their anionic form and cations are referred to as “acid addition salts”. Conversely, salts formed between bases in the cationic form and anions are referred to as “base addition salts.”

The term “pharmaceutically acceptable” refers an agent that has been approved for human consumption and is generally non-toxic. For example, the term “pharmaceutically acceptable salt” refers to nontoxic inorganic or organic acid and/or base addition salts (see, e.g., Lit et al., Salt Selection for Basic Drugs, Int. J. Pharm., 33, 201-217, 1986) (incorporated by reference herein).

Pharmaceutically acceptable base addition salts of compounds of the invention include, for example, metallic salts including alkali metal, alkaline earth metal, and transition metal salts such as, for example, calcium, magnesium, potassium, sodium, and zinc salts. Pharmaceutically acceptable base addition salts also include organic salts made from basic amines such as, for example, N,N′dibenzylethylenediamine, chloroprocaine, choline, diethanolamine, ethylenediamine, meglumine (N-methylglucamine), and procaine.

Pharmaceutically acceptable acid addition salts may be prepared from an inorganic acid or from an organic acid. Examples of inorganic acids include hydrochloric, hydrobromic, hydriodic, nitric, carbonic, sulfuric, and phosphoric acids. Appropriate organic acids may be selected from aliphatic, cycloaliphatic, aromatic, aromatic aliphatic, heterocyclic, carboxylic, and sulfonic classes of organic acids, examples of which include formic, acetic, propionic, succinic, glycolic, gluconic, lactic, malic, tartaric, citric, ascorbic, glucuronic, maleic, fumaric, pyruvic, aspartic, glutamic, benzoic, anthranilic, 4-hydroxybenzoic, phenylacetic, mandelic, hippuric, malonic, oxalic, embonic (pamoic), methanesulfonic, ethanesulfonic, benzenesulfonic, panthothenic, trifluoromethanesulfonic, 2-hydroxyethanesulfonic, p-toluenesulfonic, sulfanilic, cyclohexylaminosulfonic, stearic, alginic, Phydroxybutyric, salicylic, -galactaric, and galacturonic acid.

The compounds of the disclosure (i.e., compounds of structure (1) and embodiments thereof), or their pharmaceutically acceptable salts may contain one or more centers of geometric asymmetry and may thus give rise to enantiomers, diastereomers, and other stereoisomeric forms that are defined, in terms of absolute stereochemistry, as (R)- or (S)- or, as (D)- or (L)- for amino acids. Embodiments thus include all such possible isomers, as well as their racemic and optically pure forms. Optically active (+) and (−), (R)- and (S)-, or (D)- and (L)-isomers may be prepared using chiral synthons or chiral reagents, or resolved using conventional techniques, for example, chromatography and fractional crystallization. Conventional techniques for the preparation/isolation of individual enantiomers include chiral synthesis from a suitable optically pure precursor or resolution of the racemate (or the racemate of a salt or derivative) using, for example, chiral high pressure liquid chromatography (HPLC). When the compounds described herein contain olefinic double bonds or other centers of geometric asymmetry, and unless specified otherwise, it is intended that the compounds include both E and Z geometric isomers. Likewise, all tautomeric forms are also included.

Although pharmaceutically unacceptable salts are not generally useful as medicaments, such salts may be useful, for example as intermediates in the synthesis of compounds having the structure (1), for example in their purification by recrystallization.

As used herein, the phrase “MRGPR X2 dependent condition” means a condition where the activation, over sensitization, or desensitization of MRGPR X2 by a natural or synthetic ligand initiates, mediates, sustains, or augments a pathological condition. For example, it is known that some cationic peptidergic drugs cause pseudo-allergic reactions in patients MRGPR X2 is sensitive to (or activated by) secretagogues, cationic peptidergic drugs, including icatibant, leuprolide, or ganirelix, neutral and anionic peptidergic drugs (e.g., exenatide, glucagon, liraglutide, enfuviritide, colistimethate), non-steroidal agonist (atracurium mivacurium), non-steroidal antagonist drugs, neuropeptides, and antimicrobial peptides. Moreover, overexpression of MRGPR X2 and/or overactivity MRGPR X2 may also render mast cells more susceptible to activation by endogenous and/or exogenous ligands. Without limited by theory, it is to be understood that by modulating MRGPR X2, pseudo-allergic reactions, itch, pain, inflammatory or autoimmune disorders can be eased.

In some embodiments, the MRGPR X2 dependent condition is a condition that is caused by IgE independent activation of MRGPR X2. IgE independent activation of MRGPR X2 is capable of inducing mast cell degranulation. For example, IgE independent mast cell activation associated with some cases of chronic urticaria and other mast cell mediated conditions, which are not responsive to current anti-IgE or antihistamine therapies. Thus, the compounds of the present disclosure may be used for treating an MRGPR X2 dependent condition caused by IgE independent activation of MRGPR X2 and that would benefit from modulating MRGPR X2.

In some embodiments, the MRGPR X2 dependent condition is an itch associated condition, a pain associated condition, a pseudo-allergic reaction, or an autoimmune or inflammatory disorder.

As used herein the phrase “pseudo-allergic reaction” refers to an IgE-independent allergic reaction, characterized by histamine release, inflammation, airway contraction, or any combination thereof. A pseudo-allergic reaction may be an analphylactic reaction. A pseudo-allergic reaction may be caused by a range of cationic substances, collectively called basic secretagogues, including inflammatory peptides and drugs associated with allergic-type reactions. Thus, in one embodiment, the method of present invention is provided to treat a pseudo-allergic reaction, such as pseudo-allergic reactions caused by secretagogues, cationic peptidergic drugs, anionic peptidergic drugs, neutral peptidergic drugs, non-steroidal antagonist drugs, neuropeptides, and antimicrobial peptides. In one embodiment, the pseudo-allergic reaction is caused by MCD peptide, Substance P, VIP, PACAP, dynorphin, somatostatin, Compound 48/80, cortistatin-14, mastoparan, melettin, cathelicidin peptides, ciprofloxacin, vancomycin, leuprolide, goserelin, histrelin, triptorelin, cetrorelix, ganirelix, degarelix, octreotide, lanreotide, pasireotide, sermorelin, tesamorelin, icatibant, glatiramer acetate, teriparatide, pramlintide, bleomycin, exenatide, glucagon, liraglutide, enfuvirtide, colistimethate, succinylcholine, tubocurarine, atracurium, mivacurium, and rocuronium.

As used herein, the phrase “itch associated condition” means pruritus (including acute and chronic pruritus) associated with any condition. The itch sensation can originate, e.g., from the peripheral nervous system (e.g., dermal or neuropathic itch) or from the central nervous system (e.g., neuropathic, neurogenic or psychogenic itch). Thus, in one embodiment, the method of present invention is provided to treat an itch associated condition, such as chronic itch; contact dermatitis; Allergic blepharitis; Anaphylaxis; Anaphylactoid drug reactions; Anaphylactic shock; Anemia; Atopic dermatitis; Bullous pemphigoid; Candidiasis; Chicken pox; end-stage renal failure; hemodialysis; Cholestatic pruritis; Chronic urticaria; Contact dermatitis, Dermatitis herpetiformis; Diabetes; Drug allergy, Dry skin; Dyshidrotic dermatitis; Ectopic eczema; Eosinophilic fasciitis; Epidermolysis bullosa; Erythrasma; Food allergy; Folliculitis; Fungal skin infection; Hemorrhoids; Herpes; HIV infection; Hodgkin's disease; Hyperthyroidism; lodinated contrast dye allergy; Iron deficiency anemia; Kidney disease; Leukemia, porphyrias; Lymphoma; Mast cell activation syndrome, Malignancy; Mastocystosis; Multiple myeloma; Neurodermatitis; Onchocerciasis; Paget's disease; Pediculosis; Polycythemia rubra vera; Prurigo nodularis; Lichen Planus; Lichen Sclerosis; Pruritus ani; Pseudo-allergic reactions; Pseudorabies; Psoriasis; Rectal prolapse; Sarcoidosis granulomas; Scabies; Schistosomiasis; Scleroderma, Severe stress, Stasia dermatitis; Swimmer's itch; Thyroid disease; Tinea cruris; Uremic Pruritus; Rosacea; Cutaneous amyloidosis; Scleroderma; Acne; wound healing; burn healing; ocular itch; and Urticaria.

As used herein, the phrase “pain associated condition” means any pain due to a medical condition. Thus, in one embodiment, the method of present invention is provided to treat a pain associated condition, such as Acute Pain, Advanced Prostate Cancer, AIDS-Related Pain, Ankylosing Spondylitis, Arachnoiditis, Arthritis, Arthrofibrosis, Ataxic Cerebral Palsy, Autoimmune Atrophic Gastritis, Avascular Necrosis, Back Pain, Behcet's Disease (Syndrome), Burning Mouth Syndrome, Bursitis, Cancer Pain, Carpal Tunnel, Cauda Equina Syndrome, Central Pain Syndrome, Cerebral Palsy, Cervical Stenosis, Charcot-Marie-Tooth (CMT) Disease, Chronic Fatigue Syndrome (CFS), Chronic Functional Abdominal Pain (CFAP), Chronic Pain, Chronic Pancreatitis, Chronic Pelvic Pain Syndrome, Collapsed Lung (Pneumothorax), Complex Regional Pain Syndrome (RSD), Corneal Neuropathic Pain, Crohn's Disease, Degenerative Disc Disease, Dental Pain, Dercum's Disease, Dermatomyositis, Diabetic Peripheral Neuropathy (DPN), Dystonia, Ehlers-Danlos Syndrome (EDS), Endometriosis, Eosinophilia-Myalgia Syndrome (EMS), Erythromelalgia, Fibromyalgia, Gout, Headaches, Herniated disc, Hydrocephalus, Intercostal Neuraligia, Interstitial Cystitis, Irritable Bowel syndrome (IBS), Juvenile Dermatositis (Dermatomyositis), Knee Injury, Leg Pain, Loin Pain-Haematuria Syndrome, Lupus, Lyme Disease, Medullary Sponge Kidney (MSK), Meralgia Paresthetica, Mesothelioma, Migraine, Musculoskeletal pain, Myofascial Pain, Myositis, Neck Pain, Neuropathic Pain, Occipital Neuralgia, Osteoarthritis, Paget's Disease, Parsonage Turner Syndrome, Pelvic Pain, Periodontitis Pain, Peripheral Neuropathy, Phantom Limb Pain, Pinched Nerve, Polycystic Kidney Disease, Polymyalgia Rhuematica, Polymyositis, Porphyria, Post Herniorraphy Pain Syndrome, Post Mastectomy, Postoperative Pain, Pain Syndrome, Post Stroke Pain, Post Thorocotomy Pain Syndrome, Postherpetic Neuralgia (Shingles), Post-Polio Syndrome, Primary Lateral Sclerosis, Psoriatic Arthritis, Pudendal Neuralgia, Radiculopathy, Raynaud's Disease, Rheumatoid Arthritis (RA), Sacroiliac Joint Dysfunction, Sarcoidosi, Scheuemann's Kyphosis Disease, Sciatica, Scoliosis, Shingles (Herpes Zoster), Sjogren's Syndrome, Spasmodic Torticollis, Sphincter of Oddi Dysfunction, Spinal Cerebellum Ataxia (SCA Ataxia), Spinal Cord Injury, Spinal Stenosis, Syringomyelia, Tarlov Cysts, Transverse Myelitis, Trigeminal Neuralgia, Neuropathic Pain, Ulcerative Colitis, Vascular Pain and Vulvodynia.

As used herein, the term “autoimmune disorder”, or “inflammatory disorder” means a disease or disorder arising from and/or directed against an individual's own tissues or organs, or a co-segregate or manifestation thereof, or resulting condition therefrom. Typically, various clinical and laboratory markers of autoimmune diseases may exist including, but not limited to, hypergammaglobulinemia, high levels of autoantibodies, antigen-antibody complex deposits in tissues, clinical benefit from corticosteroid or immunosuppressive treatments, and lymphoid cell aggregates in affected tissues. Thus, in one embodiment, the method of present invention is provided to treat an autoimmune disorder, such as chronic inflammation, mast cell activation syndrome, Multiple Sclerosis, Steven Johnson's Syndrome, Toxic Epidermal Necrolysis, appendicitis, bursitis, cutaneous lupus, colitis, cystitis, dermatitis, phlebitis, reflex sympathetic dystrophy/complex regional pain syndrome (rsd/crps), rhinitis, tendonitis, tonsillitis, acne vulgaris, sinusitis, rosacea, psoriasis, graft-versus-host disease, reactive airway disorder, asthma, airway infection, allergic rhinitis, autoinflammatory disease, celiac disease, chronic prostatitis, diverticulitis, glomerulonephritis, hidradenitis suppurativa, hypersensitivities, intestinal disorder, epithelial intestinal disorder, inflammatory bowel disease, irritable bowel syndrome, Crohn's Disease, ulcerative colitis, lupus erythematous, interstitial cystitis, otitis, pelvic inflammatory disease, endometrial pain, reperfusion injury, rheumatic fever, rheumatoid arthritis, sarcoidosis, transplant rejection, psoriasis, lung inflammation, chronic obstructive pulmonary disease, permanent sputum eosiniophilia, eosinophilic leukemia, eosinophilic esophagitis, eosinophilic gastritis, mast cell gastrointestinal disease, hypereosinophilic syndrome, aspirin-exacerbated respiratory disease, nasal polyposis, chronic rhinosinusitis, antibody-dependent cell-mediated cytotoxicity, neurofibromatosis, swannamatoisis, tubulointerstitial nephritis, glomerulonephritis, diabetic nephropathy, allograft rejection, amyloidosis, renovascular ischemia, reflux nephropathy, polycystic kidney disease, liver fibrosis/cirrhosis, autoimmune liver disease, Biliary atresia, acute and chronic Hepatitis B and C virus, Liver tumors and cancer, Alcoholic liver disease, Polycystic liver disease, Liver cholangiocarcinoma, neuromyelitis optica spectum disorder, cardiovascular disease, and vasculitis.

As used herein the phrase “cancer associated condition” means any disease arising from the proliferation of malignant cancerous cells. Thus, in one embodiment, the method of present invention is provided to treat a cancer/tumor associated condition, such as adenoid cystic carcinoma, adrenal gland tumor, amyloidosis, anal cancer, appendix cancer, astrocytoma, ataxia-telangiectasia, beckwith-wiedemann syndrome, cholangiocarcinoma, birt-hogg-dube syndrome, bone cancer, brain stem glioma, brain tumor, breast cancer (inflammatory, metastatic, male), prostrate, basal cell, melanoma, colon, colorectal, bladder, kidney cancer, lacrimal gland cancer, laryngeal and hypopharyngeal cancer, lung cancer (non-small cell, small cell), leukemia (acute lymphoblastic, acute lymphocytic, acute myeloid, B cell prolymphocytic, chronic lymphocytic, chronic myeloid, chronic T cell lymphocytic, eosinophilic), Liver Cancer, Li-Fraumei syndrome, lymphoma (Hodgkin and non-hodgkin), lynch syndrome, mastocytosis, medulloblastoma, meningioma, mesothelioma, multiple endocrine neoplasia, multiple myeloma, MUTYH-associated polyposis, myelodyspastic syndrome, nasal cavity and paranasal sinus cancer, neurobastoma, neuroendocrine tyymors, neurofibromatosis, penile cancer, parathyroid cancer, ovarian fallopian tube and peritoneal cancer, osteosarcoma, pituitary gland tumor, pleupulmonary blastoma, oral and oropharyngeal, thyroid, uterine, pancreatic, carney complex, brain and spinal cord cancer, cervical cancer, cowden syndrome, craniopharyngioma, desmoid tumor, desmoplatic infantile ganglioglioma, ependymoma, esophageal cancer, ewing sarcoma, eye cancer, eyelid cancer, familial adenomatous polyposis, familial GIST, familial malignant melanoma, familial pancreatic cancer, gallbladder cancer, gastrointestinal stromal tumor, germ cell tumor, gestational trophoblastic disease, head and neck cancer, hereditary breast and ovarian cancer, hereditary diffuse gastric cancer, hereditary, leiomyomastosis and renal cell cancer, hereditary pancreatitis, herediatary papillary renal carcinoma, hereditary mixed polyposis syndrome, HIV/AIDS related cancers, retinoblastoma, rhabdomyosarcoma, salivary glanc cancer, Kaposi sarcoma, small bowel cancer, stomach cancer, testicular cancer, thymoma and thymic carcinoma, thyroid cancer, vaginal cancer, culver cancer, werner syndrome and Xeroderma pigmentosum.

As used herein, the term “administration” refers to providing a compound, or a pharmaceutical composition comprising the compound as described herein. The compound or composition can be administered by another person to the subject or it can be self-administered by the subject. Non-limiting examples of routes of administration are oral, parenteral (e.g., intravenous), or topical.

As used herein, the term “treatment” refers to an intervention that ameliorates a sign or symptom of a disease or pathological condition. As used herein, the terms “treatment”, “treat” and “treating,” with reference to a disease, pathological condition or symptom, also refers to any observable beneficial effect of the treatment. The beneficial effect can be evidenced, for example, by a delayed onset of clinical symptoms of the disease in a susceptible subject, a reduction in severity of some or all clinical symptoms of the disease, a slower progression of the disease, a reduction in the number of relapses of the disease, an improvement in the overall health or well-being of the subject, or by other parameters well known in the art that are specific to the particular disease. A prophylactic treatment is a treatment administered to a subject who does not exhibit signs of a disease or exhibits only early signs, for the purpose of decreasing the risk of developing pathology. A therapeutic treatment is a treatment administered to a subject after signs and symptoms of the disease have developed.

As used herein, the term “subject” refers to an animal (e.g., a mammal, such as a human, dog or horse). A subject to be treated according to the methods described herein may be one who has been diagnosed with a MRGPR X2 dependent condition or mrgprX2 orthologb2) dependent condition, such as a pseudo-allergic reaction, an itch associated condition, a pain associated condition, inflammatory or an autoimmune disorder. Diagnosis may be performed by any method or technique known in the art. One skilled in the art will understand that a subject to be treated according to the present disclosure may have been subjected to standard tests or may have been identified, without examination, as one at risk due to the presence of one or more risk factors associated with the disease or condition. The term “patient” may be used interchangeably with the term “subject.” A subject may refer to an adult or pediatric subject.

The Federal Food, Drug, and Cosmetic Act defines “pediatric” as a subject aged 21 or younger at the time of their diagnosis or treatment. Pediatric subpopulations are further characterized as: (i) neonates—from birth through the first 28 days of life; (ii) infants—from 29 days to less than 2 years; (iii) children—2 years to less than 12 years; and (iv) adolescents—aged 12 through 21. Despite the definition, depending on the susceptible patient population and clinical trial evaluation, an approved regulatory label may include phrasing that specifically modifies the range of a pediatric population, such as, for example, pediatric patients up to 22 years of age.

In another embodiment, the method of treating a subject having a MRGPR X2 dependent condition (e.g., an itch associated condition, a pain associated condition, a pseudo-allergic reaction, or an inflammatory or autoimmune disorder) described herein further comprises administering to the subject a pharmaceutically effective amount of a second therapeutic agent. In one embodiment, the itch associated condition is a pseudo-allergic condition.

In one embodiment, the second therapeutic agent is an antihistamine, such as an H1 receptor antagonist or an H2 receptor antagonist. In one embodiment, the second therapeutic agent is an H1 receptor antagonist antihistamine, such as levocetirizine, loratadine, fexofenadine, cetirizine, desloratadine, olopatadine, diphenhydramine, cyproheptadine or hydroxyzine pamoate. In one embodiment, the second therapeutic agent is a H2 receptor antagonist, such as cimetidine, nizatidine, ranitidine or famotidine. In one embodiment, the second therapeutic agent is a leukotriene receptor antagonist or leukotriene synthesis inhibitor, such as montelukast, zafirlukast, pranlukast, or 5-lipoxygenase inhibitor (e.g., zileuton, Hypericum perforatum). In one embodiment, the second therapeutic agent is an immunomodulatory agent such as Omalizumab or immunoglobulin therapy. In one embodiment, the second therapeutic agent is a corticosteroid, such as hydrocortisone, cortisone, ethamethasoneb, triamcinolone, prednisone, prednisolone, or fludrocortisone. In one embodiment, the second therapeutic agent is a tricylic antidepressant that can relieve itch such as doxepin, amitriptyline or nortriptyline. In one embodiment, the second therapeutic agent is an anti-inflammatory drug such as dapsone, sulfasalazine, hydroxycholoroquine or colchicine. In one embodiment, the second therapeutic agent is an immunosuppressant such as cyclosporine, methotrexate, mycophenolic acid or tacromilus.

The second therapeutic agent may be administered simultaneously, separately, or sequentially with the compounds of the present disclosure. If administered simultaneously, the second therapeutic agent and compound of the present disclosure may be administered in separate dosage forms or in the same dosage form.

In another embodiment, a method of treating a subject having an itch associated condition is provided, the method comprising administering to the subject a pharmaceutically effective amount of a compound having structure (I) or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, or a pharmaceutical composition thereof. In one embodiment, the itch associated condition is urticaria, pruritus, atopic dermatitis, dry skin, psoriasis, contact dermatitis, or eczema. In another embodiment, a method of treating a subject having an inflammation or autoimmune associated condition is provided, the method comprising administering to the subject a pharmaceutically effective amount of a compound having structure (I) or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, or a pharmaceutical composition thereof. In one embodiment, the inflammation or autoimmune associated condition is sinusitis, asthma, rosacea, or endometriosis.

In another embodiment, a method of treating a subject having a pain associated condition is provided, the method comprising administering to the subject a pharmaceutically effective amount of a compound having structure (I) or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, or a pharmaceutical composition thereof. In one embodiment, the pain associated condition is chronic pelvic pain syndrome, endometriosis pain, fibromyalgia, migraine or postoperative pain.

Compounds

As detailed above, the present disclosure provides compounds showing significant activity as MRGPR X2 antagonists. Accordingly, one embodiment provides a compound having the following structure (I):

or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein:

R¹ is cycloalkyl, aryl, heterocyclyl, —(CH₂)_(n)Q, —CHQR, or —CQ(R)₂, where Q is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, —OR, —CH₂C(O)OR, —C(O)OR, —C(O)NHR, —OC(O)R, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)C(O)OR, or —N(R)S(O)₂R, and where R¹ and/or Q is optionally substituted with one or more R^(q);

each R is independently H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, alkylamino, —(CH₂)_(n)R′, X, aryl, cycloalkyl, heteroaryl, or heterocyclyl, or two R groups together with the atom to which it is attached forms a carbocyle or heterocycle, wherein C₁₋₆ alkyl is optionally substituted with one or more of X, haloalkyl, or haloalkoxy;

each R^(q) is independently C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, heterocyclyl, —OR, —O(CH₂)_(n)R, —OX₃, —OX₂H, —O(X)H₂, —C(O)OR, —C(O)R, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, S(O)₂R, —B(OR)₂, —C(H)Q′R, or —(CH₂)_(n)Q′, where Q′ is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, OR′, —C(O)OR′, —OC(O)R′, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R′)₂, —N(R′)C(O)R′, or —N(R′)S(O)₂R^(|);

R², R³, R⁴, R⁵, and R⁶ are independently H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, heterocyclyl, —OR, —C(O)OR, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, C(X)₂R, —C(X)(R)₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, or S(O)₂R;

each R^(x) is independently H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, heterocyclyl, —OR, —C(O)OR, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, or S(O)₂R;

W is N or CR^(w);

Z is N or CR^(z);

R^(w) is H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, or heterocyclyl;

R^(z) is H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, or heterocyclyl;

each R′ is independently H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, or heterocyclyl;

each X is independently F, Cl, Br, or I; and

each n is independently 0, 1, 2, 3, 4 or 5.

In yet another embodiment, are provided compounds of formula (1a):

or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein:

R^(1a) is cycloalkyl, —(CH₂)_(n)Q, —CHQR, or —CQ(R)₂,

Q is cycloalkyl, —OR, —C(O)OR, —OC(O)R, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, or —N(R)S(O)₂R, and

where R^(1a) and/or Q is optionally substituted with one or more R^(q).

In one embodiments, R^(1a) is cycloalkyl.

In some embodiments, R^(1a) and/or Q is substituted with one or more R^(q). In other embodiments, the substituents are selected from C₁₋₆ alkyl, C₂₋₆ alkenyl, aryl, cycloalkyl, heterocyclyl, —OR, —O(CH₂)_(n)R, —OX₃, —OX₂H, —O(X)H₂, —C(O)OR, —C(O)R, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, S(O)₂R, —C(H)Q′R, or —(CH₂)_(n)Q′, where Q′ is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, OR′, —C(O)OR′, —OC(O)R′, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R′)₂, —N(R′)C(O)R′, or —N(R′)S(O)₂R′. In yet other embodiments, the substituents are C₁₋₆ alkyl, aryl, heterocyclyl, —OR, —CN, —C(O)OR, or —(CH₂)_(n)Q′.

In yet other embodiments, R⁴ and R⁶ are independently C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, OR, —C(O)OR, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, or S(O)₂R. In some embodiments, R⁶ is X, —CX₃, —CX₂H, or —C(X)H₂. In yet other embodiments, R⁶ is —CF₃, —CF₂H, or CFH₂.

In one embodiment, R^(x) is H.

In another embodiment, a compound of formula (1a) is provided where W is N and Z is CH. In yet another embodiment, a compound of formula (1a) is provided where W is CH and Z is N.

In one embodiment, are provided compounds of formula (1b):

or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein:

R^(1b) is aryl, —(CH₂)_(n)Q, —CHQR, and —CQ(R)₂,

where Q is aryl, —OR, —C(O)OR, —OC(O)R, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, or —N(R)S(O)₂R, and

where R^(1b) and/or Q is optionally substituted with one or more R^(q).

In one embodiment, R^(1b) is aryl. In another embodiment, R^(1b) is phenyl.

In some embodiments, R^(1b) and/or Q is substituted with one or more R^(q). In other embodiments, the substituents are selected from C₁₋₆ alkyl, C₂₋₆ alkenyl, aryl, cycloalkyl, heterocyclyl, —OR, —O(CH₂)_(n)R, —OX₃, —OX₂H, —O(X)H₂, —C(O)OR, —C(O)R, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, S(O)₂R, —B(OR)₂, —C(H)Q′R, or —(CH₂)_(n)Q′ where Q′ is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, OR′, —C(O)OR′, —OC(O)R′, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R′)₂, —N(R′)C(O)R′, or —N(R′)S(O)₂R′.

In yet other embodiments, R^(1b) optionally substituted with one or more R^(q) has one of the following structures:

In yet other embodiments, R⁴ and R⁶ are independently H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, heterocyclyl, —OR, —C(O)OR, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, or S(O)₂R. In specific embodiments, R⁶ is X, —CX₃, —CX₂H, or —C(X)H₂.

In some embodiments, R⁶ is —CF₃, —CF₂H, or CFH₂.

In one embodiment, R^(x) is H.

In another embodiment, a compound of formula (1b) is provided where W is N and Z is CH. In yet another embodiment, a compound of formula (1b) is provided where W is CH and Z is N.

In one embodiment, are provided compounds of formula (1c):

or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein:

R^(1c) is heterocyclyl, —(CH₂)_(n)Q, —CHQR, or —CQ(R)₂,

where Q is heterocyclyl, —OR, —C(O)OR, —OC(O)R, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, or —N(R)S(O)₂R, and

where R^(1c) and/or Q is optionally substituted with one or more R^(q).

In one embodiments, R^(1c) is heterocyclyl.

In another embodiment, heterocyclyl is aromatic and non-aromatic ring moieties containing 3 or more ring members, of which one or more is a heteroatom and wherein the heteroatom is selected from N, O, S, or P.

In some embodiments, R^(1c) and/or Q is substituted with one or more R^(q).

In other embodiments, the substituents are selected from C₁₋₆ alkyl, C₂₋₆ alkenyl, aryl, cycloalkyl, heterocyclyl, —OR, —O(CH₂)_(n)R, —OX₃, —OX₂H, —O(X)H₂, —C(O)OR, —C(O)R, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, S(O)₂R, —C(H)Q′R, or —(CH₂)_(n)Q′ where Q′ is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, OR′, —C(O)OR′, —OC(O)R′, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R′)₂, —N(R′)C(O)R′, or —N(R′)S(O)₂R′.

In some embodiments, R^(1c) optionally substituted with one or more R^(q) has one of the following structures:

In yet other embodiments, R⁴ and R⁶ are at each occurrence, independently H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, heterocyclyl, —OR, —C(O)OR, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, or S(O)₂R.

In specific embodiments, R⁶ is X, —CX₃, —CX₂H, or —C(X)H₂. In yet other embodiments, R⁶ is —CF₃, —CF₂H, or CFH₂.

In one embodiment, R^(x) is H.

In another embodiment, a compound of formula (1c) is provided where W is N and Z is CH. In yet another embodiment, a compound of formula (1c) is provided where W is CH and Z is N.

In one embodiment, are provided compounds of formula (1d):

or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein:

R^(1d) is CQ(R)₂,

where Q is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, —OR, —CH₂C(O)OR, —C(O)OR, —C(O)NHR, —OC(O)R, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)C(O)OR, or —N(R)S(O)₂R, and

where R^(1d) and/or Q is optionally substituted with one or more R^(q).

In specific embodiments, Q is selected from C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl and N(R)C(O)R.

In other embodiments, R is independently C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, alkylamino, —(CH₂)_(n)R′, X, H, aryl, cycloalkyl, or heterocyclyl.

In one embodiment, R⁶ is X, —CX₃, —CX₂H, or —C(X)H₂. In yet other embodiments, R⁶ is —CF₃, —CF₂H, or CFH₂.

In one embodiment, R^(x) is H.

In another embodiment, a compound of formula (1d) is provided where W is N and Z is CH. In yet another embodiment, a compound of formula (1d) is provided where W is CH and Z is N.

In one embodiment, are provided compounds of formula (1e):

or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein:

R^(1e) is —CHQR,

where Q is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, —OR, —CH₂C(O)OR, —C(O)OR, —C(O)NHR, —OC(O)R, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)C(O)OR, or —N(R)S(O)₂R, and

where each R^(1e) and/or Q is optionally substituted with one or more R^(q).

In specific embodiments, Q is selected from C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, —N(R)C(O)R and —N(R)C(O)OR.

In other embodiments, R is independently H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, alkylamino, —(CH₂)_(n)R′, X, aryl, cycloalkyl, or heterocyclyl.

In specific embodiments, R⁶ is X, —CX₃, —CX₂H, or —C(X)H₂. In yet other embodiments, R⁶ is —CF₃, —CF₂H, or CFH₂.

In one embodiment, R^(x) is H.

In another embodiment, a compound of formula (1e) is provided where W is N and Z is CH. In yet another embodiment, a compound of formula (1e) is provided where W is CH and Z is N.

In one embodiment, are provided compounds of formula (1f):

or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein:

R^(w) or R^(z) is independently C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, H, aryl, cycloalkyl, heteroaryl, or heterocyclyl.

In specific embodiments, R⁶ is X, —CX₃, —CX₂H, or —C(X)H₂. In yet other embodiments, R⁶ is —CF₃, —CF₂H, or CFH₂.

In a specific embodiment, R^(w) and R^(z) are both H.

In another embodiment, R^(x) is H.

In one embodiment, a compound is selected from any one of the compounds listed in Table I, or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof.

TABLE I Representative compounds having Structure (I) Structure Cpd No.

1-1 

1-2 

1-3 

1-4 

1-5 

1-6 

1-7 

1-8 

1-9 

1-10 

1-11 

1-12 

1-13 

1-14 

1-15 

1-16 

1-17 

1-18 

2-1 

2-2 

3-1 

3-2 

3-3 

3-4 

3-5 

3-6 

3-7 

3-8 

3-9 

3-10 

3-11 

3-12 

3-13 

3-14 

3-15 

3-16 

3-17 

3-18 

3-19 

3-20 

4-1 

4-2 

4-3 

4-4 

4-5 

4-6 

4-7 

4-8 

4-9 

4-10 

4-11 

4-12 

4-13 

4-14 

4-15 

4-16 

4-17 

4-18 

4-19 

4-20 

4-21 

4-22 

4-23 

4-24 

4-25 

4-26 

4-27 

4-28 

4-29 

4-30 

4-31 

4-32 

4-33 

4-34 

4-35 

4-36 

4-37 

4-38 

4-39 

4-40 

4-41 

4-42 

4-43 

4-44 

4-45 

4-46 

4-47 

4-48 

4-49 

4-50 

4-51 

4-52 

4-53 

4-54 

4-55 

4-56 

4-57 

4-58 

4-59 

4-60 

4-61 

4-62 

4-63 

4-64 

4-65 

4-66 

4-67 

4-68 

4-69 

4-70 

4-71 

4-72 

4-73 

4-74 

4-75 

4-76 

4-77 

4-78 

4-79 

4-80 

4-81 

4-82 

4-83 

4-84 

4-85 

4-86 

4-87 

4-88 

4-89 

4-90 

4-91 

4-92 

4-93 

4-94 

4-95 

4-96 

4-97 

4-98 

4-99 

4-100

4-101

4-102

4-103

4-104

4-105

4-106

4-107

4-108

4-109

4-110

4-111

4-112

4-113

4-114

4-115

4-116

4-117

4-118

4-119

4-120

4-121

4-122

4-123

4-124

4-125

4-126

4-127

4-128

4-129

4-130

4-131

4-132

4-133

4-134

4-135

4-136

4-137

4-138

4-139

4-140

4-141

4-142

4-143

4-144

4-145

4-146

4-147

4-148

4-149

4-150

4-151

4-152

4-153

4-154

4-155

4-156

4-157

4-158

4-159

4-160

4-161

4-162

4-163

4-164

4-165

4-166

4-167

4-168

4-169

4-170

4-171

4-172

4-173

4-174

4-175

4-176

4-177

4-178

4-179

4-180

4-181

4-182

4-183

4-184

4-185

4-186

4-187

4-188

4-189

4-190

4-191

4-192

4-193

4-194

4-195

4-196

4-197

4-198

4-199

4-200

4-201

4-202

4-203

4-204

4-205

4-206

4-207

4-208

4-209

4-210

4-211

4-212

4-213

4-214

4-215

4-216

4-217

4-218

4-219

4-220

4-221

4-222

4-223

4-224

4-225

4-226

4-227

4-228

4-229

4-230

4-231

4-232

4-233

4-234

4-235

4-236

4-237

4-238

4-239

4-240

4-241

4-242

4-243

4-244

2-245

4-246

4-247

4-248

4-249

4-250

4-251

4-252

4-253

4-254

4-255

4-256

4-257

4-258

4-259

4-260

4-261

4-262

4-263

4-264

4-265

4-266

4-267

4-268

4-269

4-270

4-271

4-272

4-273

4-274

4-275

4-276

4-277

4-278

4-279

4-280

4-281

4-282

4-283

4-284

4-285

4-286

4-287

4-288

4-289

4-290

4-291

4-292

4-293

4-294

4-295

4-296

4-297

4-298

4-299

4-300

4-301

4-302

4-303

4-304

4-305

4-306

4-307

4-308

4-309

4-310

4-311

4-312

4-313

4-314

4-315

4-316

4-317

4-318

4-319

4-320

4-321

4-322

4-323

4-324

4-325

4-326

4-327

4-328

4-329

4-330

4-331

4-332

4-333

4-334

4-335

4-336

4-337

4-338

4-339

4-340

4-341

4-342

4-343

4-344

4-345

4-346

4-347

4-348

4-349

4-350

4-351

4-352

4-353

4-354

4-355

4-356

4-357

4-358

4-359

4-360

4-361

4-362

4-363

4-364

4-365

4-366

4-367

4-368

4-369

4-370

4-371

4-372

4-373

4-374

4-375

4-376

4-377

4-378

4-379

4-380

4-381

4-382

4-383

4-384

4-385

4-386

4-387

4-388

4-389

4-390

4-391

4-392

4-393

4-394

4-395

4-396

4-397

4-398

4-399

4-400

4-401

4-402

4-403

4-404

4-405

4-406

4-407

4-408

4-409

4-410

4-411

4-412

4-413

4-414

4-415

4-416

4-417

4-418

4-419

4-420

4-421

4-422

4-423

4-424

4-425

4-426

4-427

4-428

4-429

4-430

5-1 

5-2 

5-3 

5-4 

5-5 

5-6 

5-7 

6-1 

6-2 

6-3 

6-4 

6-5 

6-6 

6-7 

6-8 

6-9 

6-10 

6-11 

6-12 

6-13 

6-14 

6-15 

In another embodiment, representative compounds of structure (1), as well as formulas (Ia) through (1f) as applicable, include, but not limited to, any one of the compounds listed below in their IUPAC names as well as a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof.

-   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-methanesulfonamidobenzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(methylamino)benzamide; -   3-ethanesulfonamido-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(propane-2-sulfonamido)benzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-indole-3-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-a]pyridine-6-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrrolo[2,3-b]pyridine-4-carboxamide; -   3-fluoro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methanesulfonylbenzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(propane-2-sulfonyl)benzamide; -   3-chloro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methanesulfonylbenzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methanesulfonyl-3-methylbenzamide; -   2-fluoro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methanesulfonylbenzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(1H-imidazol-1-yl)benzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(pyrrolidin-1-yl)benzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(1H-1,2,3,4-tetrazol-1-yl)benzamide; -   4-chloro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-cyano-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-acetamido-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-4-carboxamide; -   3-(1-cyanoethyl)-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(methylamino)benzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-hydroxybenzamide; -   3-(dimethylamino)-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-methoxybenzamide; -   2-chloro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-5-methanesulfonamidobenzamide; -   2,6-difluoro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(propane-1-sulfonamido)benzamide; -   1-ethyl-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-(methylamino)benzamide; -   2-cyano-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-chloro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-methylbenzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-methoxybenzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2,6-difluoro-3-(propane-2-sulfonamido)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2,6-difluoro-3-methanesulfonamidobenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-ethanesulfonamido-2,6-difluorobenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-fluoro-5-(propane-1-sulfonamido)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyrazolo[1,5-a]pyridine-2-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(1H-imidazol-1-yl)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(1H-1,2,3,4-tetrazol-1-yl)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-fluorobenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methanesulfonamidobenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-ethanesulfonamidobenzamide; -   3-hydroxy-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(2-methylpropanamido)benzamide; -   3-methanesulfonamido-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(methylamino)benzamide; -   3-(dimethylamino)-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-fluoro-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-methoxy-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-(methylamino)benzamide; -   2-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methanesulfonylbenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-ethyl-1H-pyrazole-5-carboxamide; -   2-chloro-4-methanesulfonyl-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   1-ethyl-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-(methylamino)benzamide; -   2-(1-methyl-1H-indol-3-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]acetamide; -   2,6-dimethoxy-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyrimidine-4-carboxamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,2,3-thiadiazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-cyano-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-methyl-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-methoxy-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-chloro-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-methylbenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-methoxybenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-cyanobenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(propane-2-sulfonamido)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,3-benzothiazole-7-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-a]pyrimidine-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-fluoro-1H-indazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-a]pyridine-6-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-indole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2,3-dioxo-2,3-dihydro-1H-indole-7-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4,5,6,7-tetrahydro-1H-1,3-benzodiazole-5-carboxamide; -   4-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-acetamidopyridine-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(1-cyanoethyl)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(methylamino)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-hydroxybenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(dimethylamino)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(pyrrolidin-1-yl)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-indole-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-cyanobenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-methoxybenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrrolo[2,3-b]pyridine-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(methylamino)benzamide; -   N-[(1R,3S)-3-[(6-chloro-2-methylquinolin-4-yl)amino]cyclohexyl]-4-methoxybenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-methanesulfonamidobenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(2-methylpropanamido)benzamide; -   3,3-dimethoxy-1-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]cyclobutane-1-carboxamide; -   3,4-dichloro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,2-thiazole-5-carboxamide; -   6-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-benzothiophene-2-carboxamide; -   7-methoxy-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3,4-dihydro-2H-1-benzopyran-3-carboxamide; -   3-chloro-2-iodo-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-(2,3-dimethylphenyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]acetamide; -   (1r,4r)-4-[(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)methyl]-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]cyclohexane-1-carboxamide; -   2-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4H-thieno[3,2-b]pyrrole-5-carboxamide; -   2-chloro-4-(4-methylpiperazin-1-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-methyl-4-oxo-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3H,4H-imidazo[4,3-d][1,2,3,5]tetrazine-8-carboxamide; -   3-(cyclopropylmethoxy)-4-(difluoromethoxy)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   6-fluoro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3,4-dihydro-2H-1-benzopyran-2-carboxamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyrazolo[1,5-a]pyridine-2-carboxamide; -   2,3-dioxo-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2,3-dihydro-1H-indole-7-carboxamide; -   1-phenyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrrole-2-carboxamide; -   3-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-benzofuran-2-carboxamide; -   5-chloro-2-methoxy-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-4-carboxamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,3-benzothiazole-7-carboxamide; -   3-(1-cyanoethyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-fluoro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-indazole-5-carboxamide; -   4-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-phenoxy-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-(4-chlorophenyl)-2-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]propanamide; -   1,3-dimethyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-thieno[2,3-c]pyrazole-5-carboxamide; -   4-fluoro-3-(trifluoromethoxy)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-chloro-1-(3-chloropyridin-2-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-5-carboxamide; -   1-(pyridin-3-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-4-carboxamide; -   4-oxo-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4H-chromene-3-carboxamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3,4-dihydro-2H-pyran-6-carboxamide; -   2-methyl-4-(2-methylbenzamido)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-fluoro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-indole-3-carboxamide; -   3-(1H-1,2,4-triazol-1-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   (1R,4S)-4,7,7-trimethyl-3-oxo-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-oxabicyclo[2.2.1]heptane-1-carboxamide; -   2-[(2,5-dichlorophenyl)formamido]-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]acetamide; -   1-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4,5,6,7-tetrahydro-1H-indazole-3-carboxamide; -   2-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2H-indazole-3-carboxamide; -   5-(furan-2-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,2-oxazole-3-carboxamide; -   2-chloro-4-methanesulfonyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   1-(2-chlorobenzoyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]piperidine-4-carboxamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,6-naphthyridine-2-carboxamide; -   1-cyano-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]cyclopropane-1-carboxamide; -   5-fluoro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-benzofuran-2-carboxamide; -   7-methoxy-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-benzofuran-2-carboxamide; -   2-(1,2-benzoxazol-3-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]acetamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-a]pyrimidine-3-carboxamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2H-1,3-benzodioxole-4-carboxamide; -   2-acetamido-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-4-carboxamide; -   2-(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-4-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]acetamide; -   6-oxo-2-phenyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3,6-dihydropyrimidine-4-carboxamide; -   6-chloro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-b]pyridazine-2-carboxamide; -   2-[5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]acetamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrrolo[2,3-b]pyridine-4-carboxamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4,5,6,7-tetrahydro-1-benzothiophene-2-carboxamide; -   1-(4-methylbenzenesulfonyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrrole-3-carboxamide; -   2-oxo-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2,3-dihydropyridine-4-carboxamide; -   2-(thiophen-3-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]acetamide; -   2-(morpholin-4-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-4-carboxamide; -   2-(1H-indol-1-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]acetamide; -   1-[5-(trifluoromethyl)pyridin-2-yl]-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]piperidine-4-carboxamide; -   1-methyl-3-(2-methylpropyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-5-carboxamide; -   5-(2-chlorophenyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-3-carboxamide; -   5-(propan-2-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-3-carboxamide; -   3-chloro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-benzothiophene-2-carboxamide; -   3-tert-butyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2H-pyrazolo[3,4-b]pyridine-3-carboxamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4,5,6,7-tetrahydro-1H-1,3-benzodiazole-6-carboxamide; -   3-(2-fluorophenyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-5-carboxamide; -   5-fluoro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrrolo[2,3-b]pyridine-2-carboxamide; -   (2R)-2-(3-acetamidopropanamido)-3-(1H-imidazol-5-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]propanamide; -   2-(pyridin-4-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-1,3-benzodiazole-5-carboxamide; -   7-methyl-2-propyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-1,3-benzodiazole-5-carboxamide; -   2-chloro-6-fluoro-3-methoxy-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   (2S)-3-phenyl-2-[(pyrazin-2-yl)formamido]-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]propanamide; -   3-(4-chloro-3-fluorophenyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]propanamide; -   4-(4-ethylphenyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]butanamide; -   1-(4-chlorophenyl)-5-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-4-carboxamide; -   5-(thiophen-2-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-3-carboxamide; -   (1R,2R)-2-(2-fluorophenyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]cyclopropane-1-carboxamide; -   (2R,3R)-2-(2-methoxyphenyl)-5-oxo-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]oxolane-3-carboxamide; -   5-chloro-1-phenyl-3-(trifluoromethyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-4-carboxamide; -   1-tert-butyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-1,2,3-triazole-4-carboxamide; -   1-[(4-fluorophenyl)methyl]-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-indole-3-carboxamide; -   1-(3-fluorophenyl)-5-(trifluoromethyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-4-carboxamide; -   4-butanamido-3-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-(5-bromo-2-fluorophenyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]propanamide; -   1-(2,4-dichlorophenyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]cyclobutane-1-carboxamide; -   N-[3-({[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl}methyl)phenyl]benzamide; -   tert-butyl     (3S)-3-methyl-3-{[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl}propanoate; -   3-{[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl}phenyl     propanoate; -   N-(2,6-difluorophenyl)-N′-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]ethanediamide; -   4-methoxy-N-[(1R,3S)-3-{[3-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   N-[(1R,3S)-3-[(2-cyanoquinolin-4-yl)amino]cyclohexyl]-4-methoxybenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   N-[(1R,3S)-3-{[2-(difluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methoxybenzamide; -   4-methoxy-N-[(1R,3S)-3-{[5-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-methoxy-N-[(1R,3S)-3-{[7-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-(2-oxopyrrolidin-1-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   1-methanesulfonyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]piperidine-4-carboxamide; -   1-(3-methoxyphenyl)-5-oxo-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyrrolidine-3-carboxamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-a]pyrazine-2-carboxamide; -   2-(cyclobutylformamido)-2-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]propanamide; -   tert-butyl     N-methyl-N-[(5)-phenyl({[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl})methyl]carbamate; -   1-(2,2-difluoroethyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-3-carboxamide; -   1-ethenyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-oxabicyclo[2.2.2]octane-4-carboxamide; -   2,6,6-trimethyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]bicyclo[3.1.1]heptane-3-carboxamide; -   1,4-dimethyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-indole-2-carboxamide; -   3-methyl-4-oxo-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3,4-dihydroquinazoline-7-carboxamide; -   5-(pyridin-3-yloxy)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]furan-2-carboxamide; -   5-oxo-1-phenyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyrrolidine-2-carboxamide; -   2-methyl-3-oxo-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3,4-dihydro-2H-1,4-benzoxazine-6-carboxamide; -   2-oxo-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H,2H,3H-pyrido[2,3-b][1,4]thiazine-7-carboxamide; -   6-(oxan-4-yloxy)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-2-carboxamide; -   2-methoxy-4-(trifluoromethyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,3-thiazole-5-carboxamide; -   6-(2-methoxyphenyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-3-carboxamide; -   5-(trifluoromethyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrrolo[2,3-b]pyridine-3-carboxamide; -   4-methyl-2-(pyridin-2-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,3-thiazole-5-carboxamide; -   2-oxo-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2H-chromene-6-carboxamide; -   3,6-difluoro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-2-carboxamide; -   1-ethyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-5-carboxamide; -   ethyl     1-{[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl}cyclobutane-1-carboxylate; -   2-benzyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2,3-dihydro-1H-isoindole-4-carboxamide; -   3-(2-chloro-6-fluorophenyl)-5-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,2-oxazole-4-carboxamide; -   1-[(4-methoxyphenyl)methyl]-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-4-carboxamide; -   2,4-dichloro-3-cyano-5-fluoro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   5-benzoyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2,3-dihydro-1H-pyrrolizine-1-carboxamide; -   2,6-difluoro-3-(propane-1-sulfonamido)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-[(quinolin-2-yl)methoxy]-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   tert-butyl     (3S,4R)-3-(thiophen-3-yl)-4-{[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl}pyrrolidine-1-carboxylate; -   4-propyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,2,3-thiadiazole-5-carboxamide; -   2-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyrazolo[1,5-a]pyrimidine-6-carboxamide; -   tert-butyl     3-{[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl}-1-oxa-2,7-diazaspiro[4.5]dec-2-ene-7-carboxylate; -   7-(benzyloxy)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-indole-3-carboxamide; -   4-(5-cyclopropyl-1,2,4-oxadiazol-3-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-[(4-methoxyphenyl)methoxy]-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,2-oxazole-5-carboxamide; -   5-cyano-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-indazole-3-carboxamide; -   2-(5-methoxy-2-methyl-1H-indol-3-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]acetamide; -   2-[2-(difluoromethoxy)-6-fluorophenyl]-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]acetamide; -   4-benzyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]morpholine-3-carboxamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,5-a]pyridine-1-carboxamide; -   1-(pyrazin-2-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]cyclopropane-1-carboxamide; -   2-(5-cyano-1-methyl-1H-pyrrol-2-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]acetamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4H,5H,6H,7H-pyrazolo[1,5-a]pyridine-2-carboxamide; -   methyl     4-{[(1S,3R)-3-(4-methoxybenzamido)cyclohexyl]amino}-2-(trifluoromethyl)quinoline-8-carboxylate; -   2,2-dimethyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]propanamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]propanamide; -   3-phenyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]propanamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]cyclohexanecarboxamide; -   2-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]propanamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]cyclopropanecarboxamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-2-carboxamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-3-carboxamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-4-carboxamide; -   4-(morpholin-4-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-(methylamino)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-(methylamino)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-(methylamino)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   6-(dimethylamino)-2-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-3-carboxamide; -   N-[(1R,3S)-3-{[7-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methoxybenzamide; -   N-[(1R,3S)-3-{[5-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methoxybenzamide; -   N-[(1R,3S)-3-{[8-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methoxybenzamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-(dimethylamino)-2-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-cyano-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   methyl     3-{[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl}benzoate; -   2-cyano-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-cyano-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-chloro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-fluoro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-fluoro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-methoxy-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-methoxy-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-methoxy-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methoxybenzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methoxybenzamide; -   4-methoxy-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-(4-methylpiperazin-1-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-acetamido-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   methyl     4-{[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl}benzoate; -   4-ethyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-acetamido-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-ethyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-chloro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-ethyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-(dimethylamino)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-chloro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-(dimethylamino)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-(dimethylamino)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-fluoro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-cyano-N-((1R,3S)-3-((7-methyl-3-(trifluoromethyl)naphthalen-1-yl)amino)cyclohexyl)benzamide; -   N-((1R,3S)-3-((7-chloro-3-(trifluoromethyl)naphthalen-1-yl)amino)cyclohexyl)-3-cyanobenzamide; -   3-cyano-N-((1R,3S)-3-((7-fluoro-3-(trifluoromethyl)naphthalen-1-yl)amino)cyclohexyl)benzamide; -   (2E)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(2,3,4-trimethoxyphenyl)prop-2-enamide; -   1,3,5-trimethyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-4-carboxamide; -   1,3-diethyl-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-5-carboxamide; -   1-ethenyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-oxabicyclo[2.2.2]octane-4-carboxamide; -   1-ethyl-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-methyl-1H-pyrazole-5-carboxamide; -   1-ethyl-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methyl-1H-pyrazole-5-carboxamide; -   1-ethyl-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-5-carboxamide; -   1-tert-butyl-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-5-carboxamide; -   2-(2H-1,2,3-triazol-2-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-(5-chloro-1H-indazol-3-yl)-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]acetamide; -   2-(cyclohexyloxy)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]acetamide; -   2,6-difluoro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(propane-2-sulfonamido)benzamide; -   2,6-difluoro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-methanesulfonamidobenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-hydroxy-3-methylazetidine-1-carboxamide; -   2-[4-(2,2-dichlorocyclopropyl)phenoxy]-2-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]propanamide; -   2-[5-fluoro-2-(trifluoromethyl)phenyl]-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]acetamide; -   2-{5-bromo-1H-pyrrolo[2,3-b]pyridin-3-yl}-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]acetamide; -   2-acetamido-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-4-carboxamide; -   2-acetamido-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-4-carboxamide; -   2-amino-3-(1H-imidazol-4-yl)-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]propanamide; -   2-benzyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]prop-2-enamide; -   2-chloro-4-iodo-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-3-carboxamide; -   2-chloro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-chloro-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-fluoro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methanesulfonylbenzamide; -   2-fluoro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-5-(propane-1-sulfonamido)benzamide; -   2-fluoro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   2-imino-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,3-thiazolidine-4-carboxamide; -   2-methyl-5-{[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl}pyrazin-1-ium-1-olate; -   3-(1-cyanoethyl)-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-acetamido-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-acetamido-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-bromo-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-5-acetamidobenzamide; -   3-chloro-4-(propan-2-yloxy)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-chloro-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-cyano-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-cyano-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-cyclopropyl-1-ethyl-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-5-carboxamide; -   3-ethanesulfonamido-2,6-difluoro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-fluoro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-methanesulfonamido-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   3-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,2-oxazole-4-carboxamide; -   4-(1,1-dioxo-1λ⁶-thiomorpholin-4-yl)-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-(1H-imidazol-1-yl)-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-(dimethylamino)-N-[(1S,3R)-3-(4-methoxybenzamido)cyclohexyl]benzamide; -   4-bromo-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-cyanobenzamide; -   4-chloro-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-cyano-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-fluoro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinazolin-4-yl]amino}cyclohexyl]benzamide; -   4-fluoro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-indazole-5-carboxamide; -   4-fluoro-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-iodo-1-methyl-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-3-carboxamide; -   4-methoxy-N-[(1R,3S)-3-[(naphthalen-1-yl)amino]cyclohexyl]benzamide; -   4-methoxy-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinazolin-4-yl]amino}cyclohexyl]benzamide; -   4-methoxy-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-5-yl]amino}cyclohexyl]benzamide; -   4-methoxy-N-[(1R,3S)-3-{[3-(trifluoromethyl)isoquinolin-1-yl]amino}cyclohexyl]benzamide; -   (2R,3R)—N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(hydroxymethyl)-2-methylpyrrolidine-1-carboxamide -   4-methoxy-N-[(1R,3S)-3-{[3-(trifluoromethyl)naphthalen-1-yl]amino}cyclohexyl]benzamide; -   4-methoxy-N-[(1R,3S)-3-{[6-methoxy-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   4-methoxy-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   5-bromo-2-(methylsulfanyl)-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyrimidine-4-carboxamide; -   5-bromo-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-a]pyridine-2-carboxamide; -   5-bromo-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-cyanobenzamide; -   5-bromo-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-indole-7-carboxamide; -   5-chloro-3-(difluoromethyl)-1-methyl-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-4-carboxamide; -   6-chloro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2H-chromene-3-carboxamide; -   6-chloro-N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-b]pyridazine-2-carboxamide; -   7-bromo-2-methyl-N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-a]pyridine-3-carboxamide; -   methyl     5-{[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl}-1-ethyl-1H-pyrazole-3-carboxylate; -   methyl     N—[(R)-{[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl}(phenyl)methyl]carbamate; -   N-[(1R,3R)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methoxybenzamide; -   N-[(1R,3R)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methoxybenzamide; -   N-[(1R,3S)-3-{[2-(difluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methoxybenzamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H,4H,6H,7H-pyrano[4,3-c]pyrazole-3-carboxamide; -   N-[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]furan-3-carboxamide; -   N-[(1R,3S)-3-{[3-cyano-6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methoxybenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-[1,2,4]triazolo[1,5-a]pyridine-6-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-[1,2,4]triazolo[4,3-a]pyridine-6-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(2,2,2-trifluoroethyl)-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(2,2-difluoroethyl)-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(2-fluoroethyl)-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(2-methylpropyl)-1H-pyrazole-5-carboxamide; -   5-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(2-cyanoethyl)-1H-pyrazole-4-carboxamide; -   4-(dimethylamino)-N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-(dimethylamino)-1,3-thiazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-[(2-fluoroethyl)amino]pyrimidine-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2,5-dimethyl-1H-pyrrole-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-ethyl-1H-pyrrole-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-cyano-1-(difluoromethyl)-1H-pyrazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(difluoromethyl)-1-(fluoromethyl)-1H-pyrazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(propan-2-yl)-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,3-benzothiazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,3-diethyl-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-cyclobutyl-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-cyclohexyl-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-cyclopentyl-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-cyclopropyl-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-ethyl-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-ethyl-3-(propan-2-yl)-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-ethyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-ethyl-3-methyl-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-ethyl-3-phenyl-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-ethyl-4-methyl-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-indole-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-indole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazolo[4,3-b]pyridine-7-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrrolo[2,3-b]pyridine-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-methyl-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-phenyl-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-propyl-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-cyano-4-fluorobenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-ethyl-4,5,6,7-tetrahydro-2H-indazole-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-fluoro-3-methanesulfonamidobenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-fluoro-5-(propane-1-sulfonamido)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-hydroxypyridine-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-methylimidazo[1,2-a]pyridine-6-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-oxo-2H-chromene-6-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(difluoromethanesulfonamido)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(N-methylmethanesulfonamido)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(trifluoromethanesulfonamido)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3,5-dihydroxybenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-acetamido-5-methoxybenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-acetamidobenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-cyanobenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-cyclopropyl-1-ethyl-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-methanesulfonamidobenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-methanesulfonamidobenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-methylimidazo[1,2-a]pyridine-6-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(1,1-dioxo-1λ⁶-thiomorpholin-4-yl)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(methylamino)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(N-methylmethanesulfonamido)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-fluoro-3-methanesulfonamidobenzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-6-methyl-1H-1,3-benzodiazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-a]pyridine-6-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-a]pyridine-7-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-a]pyrimidine-6-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,5-a]pyridine-6-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,5-a]pyridine-7-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-[1,2,4]triazolo[1,5-a]pyridine-6-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-[1,2,4]triazolo[4,3-a]pyridine-6-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(2-methylpropyl)-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(propan-2-yl)-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,3-benzothiazole-7-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-methyl-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-propyl-1H-pyrazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2,3-dioxo-2,3-dihydro-1H-indole-7-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-methylimidazo[1,2-a]pyridine-6-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-oxo-2,3-dihydropyridine-4-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-oxo-2H-chromene-6-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(2-methylpropanamido)benzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3H,3aH-pyrazolo[1,5-a]pyridine-2-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-methylimidazo[1,2-a]pyridine-6-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(N-methylmethanesulfonamido)benzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4,5,6,7-tetrahydro-1H-1,3-benzodiazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methanesulfonyl-3-methylbenzamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-a]pyridine-7-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-a]pyrimidine-3-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-a]pyrimidine-6-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,5-a]pyridine-6-carboxamide; -   N-[(1R,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,5-a]pyridine-7-carboxamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,3-benzothiazole-7-carboxamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-indole-3-carboxamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-indole-4-carboxamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrrolo[2,3-b]pyridine-4-carboxamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2,3-dioxo-2,3-dihydro-1H-indole-7-carboxamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-oxo-2,3-dihydropyridine-4-carboxamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-[(trifluoromethyl)sulfanyl]benzamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(1H-1,2,3,4-tetrazol-1-yl)benzamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(methylamino)benzamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(N-methylmethanesulfonamido)benzamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(pyrrolidin-1-yl)benzamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-a]pyridine-6-carboxamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]imidazo[1,2-a]pyrimidine-3-carboxamide; -   N-[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyrazolo[1,5-a]pyridine-2-carboxamide; -   N-[(1S,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methoxybenzamide; -   N-[(1S,3S)-3-{[6-fluoro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methoxybenzamide; -   tert-butyl     7-{[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl}-1,2,3,4-tetrahydroisoquinoline-2-carboxylate; -   tert-butyl     7-{[(1R,3S)-3-{[6-methyl-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl}-1,2,3,4-tetrahydroisoquinoline-2-carboxylate; -   tert-butyl     N-[(1S)-2-(pent-4-en-1-yloxy)-1-{[(1R,3S)-3-{[2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl}ethyl]carbamate; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(morpholine-4-carbonyl)benzamide; -   6-amino-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-3-carboxamide; -   2-amino-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyrimidine-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]piperazine-1-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methylpiperazine-1-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(propan-2-yl)piperazine-1-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(2-methylpropanoyl)piperazine-1-carboxamide; -   4-amino-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]piperidine-1-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyrrolidine-1-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(trifluoromethyl)-1H-pyrrole-3-carboxamide; -   5-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrrole-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(2-chloroethyl)-1H-pyrazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-[1,2,4]triazolo[4,3-a]pyridine-7-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrazolo[4,3-c]pyridine-7-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(difluoromethyl)-1H-pyrazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(difluoromethyl)-1H-pyrazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-methyl-1H-pyrazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,3-dimethyl-1H-pyrazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,3-dimethyl-1H-pyrazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-methyl-1-(propan-2-yl)-1H-pyrazole-4-carboxamide; -   (3S)—N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-fluoropiperidine-1-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-6-methylpyridine-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-6-methylpyridine-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-5-cyclopropyl-1H-pyrazole-4-carboxamide; -   3-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(difluoromethyl)-1H-pyrazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(oxetan-3-yl)-1H-pyrazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-5-cyano-1H-pyrrole-3-carboxamide; -   2-amino-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-fluoro-3-methylazetidine-1-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-[(dimethylamino)methyl]benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-6-fluoropyridine-3-carboxamide; -   2-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-methyl-1H-imidazole-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methoxy-3-(methylamino)benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3,3-difluoropiperidine-1-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-6-methoxypyridine-3-carboxamide; -   4-(aziridin-1-yl)-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]benzamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-methyl-1H-pyrrole-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1,4-dimethyl-1H-pyrrole-3-carboxamide; -   5-amino-2-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyridine-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-5-methylfuran-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-5-azaspiro[2.3]hexane-5-carboxamide; -   6-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-5H,6H,7H-pyrrolo[3,4-b]pyridin-7-one;     and -   N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-3-hydroxy-3-methylazetidine-1-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-fluoro-3-methylazetidine-1-carboxamide; -   3-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(2-cyanoethyl)-1H-pyrazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(2-fluoroethyl)-1H-pyrrole-3-carboxamide; -   5-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-methyl-1H-pyrrole-3-carboxamide; -   5-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(2,2-difluoroethyl)-1H-pyrrole-3-carboxamide; -   3-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-methanesulfonyl-1H-pyrazole-4-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(2-fluoroethyl)-2-methyl-1H-pyrrole-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(2-fluoroethyl)-5-methyl-1H-pyrrole-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(2,2-difluoroethyl)-2-methyl-1H-pyrrole-3-carboxamide; -   5-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-ethyl-1H-pyrrole-3-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(2,2-difluoroethyl)-5-methyl-1H-pyrrole-3-carboxamide; -   3-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1-(oxetan-3-yl)-1H-pyrazole-4-carboxamide; -   6-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-5H,6H,7H-pyrrolo[3,4-b]pyridin-7-one; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-methyl-4H,5H,6H,7H-[1,3]thiazolo[5,4-c]pyridine-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-2-methyl-4H,5H,6H,7H-[1,3]thiazolo[5,4-c]pyridine-5-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-(propan-2-yl)piperazine-1-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-4-methylpiperazine-1-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-3-fluoro-3-methylpyrrolidine-1-carboxamide; -   N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-5-methylthiophene-2-carboxamide; -   2-chloro-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-1H-pyrrole-3-carboxamide;     and -   (4-{[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]carbamoyl}phenyl)boronic     acid.

In certain embodiments, the invention provides a pharmaceutical composition comprising a compound of structure (I) or any one of formulas (Ia) through (1f), or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, together with at least one pharmaceutically acceptable carrier, diluent, or excipient. For example, the active compound will usually be mixed with a carrier, or diluted by a carrier, or enclosed within a carrier which can be in the form of an ampoule, capsule, sachet, paper, or other container. When the active compound is mixed with a carrier, or when the carrier serves as a diluent, it can be solid, semi-solid, or liquid material that acts as a vehicle, excipient, or medium for the active compound. The active compound can be adsorbed on a granular solid carrier, for example contained in a sachet. Some examples of suitable carriers are water, salt solutions, alcohols, polyethylene glycols, polyhydroxyethoxylated castor oil, peanut oil, olive oil, gelatin, lactose, terra alba, sucrose, dextrin, magnesium carbonate, sugar, cyclodextrin, amylose, magnesium stearate, talc, gelatin, agar, pectin, acacia, stearic acid, or lower alkyl ethers of cellulose, silicic acid, fatty acids, fatty acid amines, fatty acid monoglycerides and diglycerides, pentaerythritol fatty acid esters, polyoxyethylene, hydroxymethylcellulose, and polyvinylpyrrolidone. Similarly, the carrier or diluent can include any sustained release material known in the art, such as glyceryl monostearate or glyceryl distearate, alone or mixed with a wax.

As used herein, the term “pharmaceutical composition” refers to a composition containing one or more of the compounds described herein, or a pharmaceutically acceptable isomer, racemate, hydrate, solvate, isotope or salt thereof, formulated with a pharmaceutically acceptable carrier, which can also include other additives, and manufactured or sold with the approval of a governmental regulatory agency as part of a therapeutic regimen for the treatment of disease in a mammal. Pharmaceutical compositions can be formulated, for example, for oral administration in unit dosage form (e.g., a tablet, capsule, caplet, gelcap, or syrup); for topical administration (e.g., as a cream, gel, lotion, or ointment); for intravenous administration (e.g., as a sterile solution free of particulate emboli and in a solvent system suitable for intravenous use); for administration to a pediatric subject (e.g., solution, syrup, suspension, elixir, powder for reconstitution as suspension or solution, dispersible/effervescent tablet, chewable tablet, lollipop, freezer pops, troches, oral thin strips, orally disintegrating tablet, orally disintegrating strip, and sprinkle oral powder or granules); or in any other formulation described herein. Conventional procedures and ingredients for the selection and preparation of suitable formulations are described, for example, in Remington: The Science and Practice of Pharmacy, 21st Ed., Gennaro, Ed., Lippencott Williams & Wilkins (2005) and in The United States Pharmacopeia: The National Formulary (USP 36 NF31), published in 2013.

In some embodiments, the pharmaceutical composition comprising a compound of structure (I) or any one of formulas (Ia) through (1f), or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, with at least one pharmaceutically acceptable carrier, diluent, or excipient further comprises a second therapeutic agent.

In one embodiment, the second therapeutic agent is an antihistamine, such as an H1 receptor antagonist or an H2 receptor antagonist. In one embodiment, the second therapeutic agent is an H1 receptor antagonist antihistamine, such as levocetirizine, loratadine, fexofenadine, cetirizine, desloratadine, olopatadine, diphenhydramine, cyproheptadine or hydroxyzine pamoate. In one embodiment, the second therapeutic agent is a H2 receptor antagonist, such as cimetidine, nizatidine, ranitidine or famotidine. In one embodiment, the second therapeutic agent is a leukotriene receptor antagonist or leukotriene synthesis inhibitor, such as montelukast, zafirlukast, pranlukast, or 5-lipoxygenase inhibitor (e.g., zileuton, Hypericum perforatum). In one embodiment, the second therapeutic agent is an immunomodulatory agent such as Omalizumab or immunoglobulin therapy. In one embodiment, the second therapeutic agent is a corticosteroid, such as hydrocortisone, cortisone, ethamethasoneb, triamcinolone, prednisone, prednisolone, or fludrocortisone. In one embodiment, the second therapeutic agent is a tricylic antidepressant that can relieve itch such as doxepin, amitriptyline or nortriptyline. In one embodiment, the second therapeutic agent is an anti-inflammatory drug such as dapsone, sulfasalazine, hydroxycholoroquine or colchicine. In one embodiment, the second therapeutic agent is an immunosuppressant such as cyclosporine, methotrexate, mycophenolic acid or tacromilus.

In one embodiment, the second therapeutic agent is an H1 receptor antagonist antihistamine, such as levocetirizine, loratadine, fexofenadine, cetirizine, desloratadine, olopatadine, diphenhydramine, cyproheptadine or hydroxyzine pamoate. In one embodiment, the second therapeutic agent is a H2 receptor antagonist, such as cimetidine, nizatidine, ranitidine or famotidine. In one embodiment, the second therapeutic agent is a leukotriene receptor antagonist or leukotriene synthesis inhibitor, such as montelukast, zafirlukast, pranlukast, or 5-lipoxygenase inhibitor (e.g., zileuton, Hypericum perforatum). In one embodiment, the second therapeutic agent is an immunomodulatory agent such as Omalizumab or immunoglobulin therapy. In one embodiment, the second therapeutic agent is a corticosteroid, such as hydrocortisone, cortisone, ethamethasoneb, triamcinolone, prednisone, prednisolone, or fludrocortisone. In one embodiment, the second therapeutic agent is a tricylic antidepressant that can relieve itch such as doxepin, amitriptyline or nortriptyline. In one embodiment, the second therapeutic agent is an anti-inflammatory drug such as dapsone, sulfasalazine, hydroxycholoroquine or colchicine. In one embodiment, the second therapeutic agent is an immunosuppressant such as cyclosporine, methotrexate, mycophenolic acid or tacromilus.

As used herein, the term “pharmaceutically acceptable carrier” refers to any ingredient other than the disclosed compounds, or a pharmaceutically acceptable isomer, racemate, hydrate, solvate, isotope or salt thereof (e.g., a carrier capable of suspending or dissolving the active compound) and having the properties of being nontoxic and non-inflammatory in a patient. Excipients may include, for example: antiadherents, antioxidants, binders, coatings, compression aids, disintegrants, dyes (colors), emollients, emulsifiers, fillers (diluents), film formers or coatings, flavors, fragrances, glidants (flow enhancers), lubricants, preservatives, printing inks, sorbents, suspending or dispersing agents, sweeteners, or waters of hydration. Exemplary excipients include, but are not limited to: butylated hydroxytoluene (BHT), calcium carbonate, calcium phosphate (dibasic), calcium stearate, croscarmellose, crosslinked polyvinyl pyrrolidone, citric acid, crospovidone, cysteine, ethylcellulose, gelatin, hydroxypropyl cellulose, hydroxypropyl methylcellulose, lactose, magnesium stearate, maltitol, mannitol, methionine, methylcellulose, methyl paraben, microcrystalline cellulose, polyethylene glycol, polyvinyl pyrrolidone, povidone, pregelatinized starch, propyl paraben, retinyl palmitate, shellac, silicon dioxide, sodium carboxymethyl cellulose, sodium citrate, sodium starch glycolate, sorbitol, starch (corn), stearic acid, stearic acid, sucrose, talc, titanium dioxide, vitamin A, vitamin E, vitamin C, and xylitol.

The formulations can be mixed with auxiliary agents which do not deleteriously react with the active compounds. Such additives can include wetting agents, emulsifying and suspending agents, salt for influencing osmotic pressure, buffers and/or coloring substances, preserving agents, sweetening agents, or flavoring agents. The compositions can also be sterilized if desired.

The route of administration can be any route which effectively transports the active compound of the invention to the appropriate or desired site of action, such as oral, nasal, pulmonary, buccal, subdermal, intradermal, transdermal, or parenteral, including intravenous, subcutaneous and/or intramuscular. In one embodiment, the route of administration is oral. In another embodiment, the route of administration is topical.

Dosage forms can be administered once a day, or more than once a day, such as twice or thrice daily. Alternatively, dosage forms can be administered less frequently than daily, such as every other day, or weekly, if found to be advisable by a prescribing physician or drug's prescribing information. Dosing regimens include, for example, dose titration to the extent necessary or useful for the indication to be treated, thus allowing the patient's body to adapt to the treatment, to minimize or avoid unwanted side effects associated with the treatment, and/or to maximize the therapeutic effect of the present compounds. Other dosage forms include delayed or controlled-release forms. Suitable dosage regimens and/or forms include those set out, for example, in the latest edition of the Physicians' Desk Reference, incorporated herein by reference.

Proper dosages for pediatric patients can be determined using known methods, including weight, age, body surface area, and models such as Simcyp® Pediatric Simulation modeling (CERTARA, Princeton, N.J.) which can be used to establish a pharmacokinetic approach for dosing that takes into account patient age, ontogeny of the clearance pathways to eliminate a compound of any one of formulas (Ia) through (1f), and body surface area (BSA). In one embodiment, the dosage form is formulated to provide a pediatric dose from about 30% to about 100% of an adult dose, or about 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, or 100% of an adult dose.

In one embodiment, the invention provides an oral pharmaceutical composition comprising a compound of structure (I) or any one of formulas (Ia) through (1f), or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, together with at least one pharmaceutically acceptable oral carrier, diluent, or excipient. In another embodiment, the invention provides a topical pharmaceutical composition comprising a compound of structure (I) or any one of formulas (Ia) through (1f), or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, together with at least one pharmaceutically acceptable topical carrier, diluent, or excipient. For example, the oral pharmaceutical composition is provided to treat cholestatic pruritus, wherein the dosage regimen is, for example, once a day. In one embodiment, the topical pharmaceutical composition is provided to treat atopic dermatitis.

In another embodiment, there are provided methods of making a composition of a compound described herein including formulating a compound of the invention with a pharmaceutically acceptable carrier or diluent. In some embodiments, the pharmaceutically acceptable carrier or diluent is suitable for oral administration. In some such embodiments, the methods can further include the step of formulating the composition into a tablet or capsule. In other embodiments, the pharmaceutically acceptable carrier or diluent is suitable for parenteral administration. In some such embodiments, the methods further include the step of lyophilizing the composition to form a lyophilized preparation. In some embodiments, the composition is formulated into a pediatric dosage form suitable for treating a pediatric subject.

In certain embodiments, the invention provides a compound having structure (I) or any one of formulas (Ia) through (1f), or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof. Such compounds can be synthesized using standard synthetic techniques known to those skilled in the art. For example, compounds of the present invention can be synthesized using appropriately modified synthetic procedures set forth in the following Examples and Reaction Schemes.

To this end, the reactions, processes, and synthetic methods described herein are not limited to the specific conditions described in the following experimental section, but rather are intended as a guide to one with suitable skill in this field. For example, reactions may be carried out in any suitable solvent, or other reagents to perform the transformation[s] necessary. Generally, suitable solvents are protic or aprotic solvents which are substantially non-reactive with the reactants, the intermediates or products at the temperatures at which the reactions are carried out (i.e., temperatures which may range from the freezing to boiling temperatures). A given reaction may be carried out in one solvent or a mixture of more than one solvent. Depending on the particular reaction, suitable solvents for a particular work-up following the reaction may be employed.

All reagents, for which the synthesis is not described in the experimental part, are either commercially available, or are known compounds or may be formed from known compounds by known methods by a person skilled in the art. The compounds and intermediates produced according to the methods of the invention may require purification. Purification of organic compounds is well known to a person skilled in the art and there may be several ways of purifying the same compound. In some cases, no purification may be necessary. In some cases, the compounds may be purified by crystallization. In some cases, impurities may be stirred out using a suitable solvent. In some cases, the compounds may be purified by chromatography, particularly flash column chromatography, using purpose-made or prepacked silica gel cartridges and eluents such as gradients of solvents such as heptane, ether, ethyl acetate, acetonitrile, ethanol and the like. In some cases, the compounds may be purified by preparative HPLC using methods as described.

Purification methods as described herein may provide compounds of the present invention which possess a sufficiently basic or acidic functionality in the form of a salt, such as, in the case of a compound of the present invention which is sufficiently basic, a trifluoroacetate or formate salt, or, in the case of a compound of the present invention which is sufficiently acidic, an ammonium salt. A salt of this type can either be transformed into its free base or free acid form, respectively, by various methods known to a person skilled in the art, or be used as salts in subsequent biological assays. It is to be understood that the specific form of a compound of the present invention as isolated and as described herein is not necessarily the only form in which said compound can be applied to a biological assay in order to quantify the specific biological activity.

Chemical names were generated using the ChemDraw naming software (Version 17.0.0.206) by PerkinElmer Informatics, Inc. In some cases, generally accepted names of commercially available reagents were used in place of names generated by the naming software.

EXAMPLES General Methods

¹H NMR (400 MHz) spectra were obtained in solution of deuterochloroform (CDCl₃), deuteromethanol (CD₃OD) or dimethyl sulfoxide—D6 (DMSO). HPLC retention times, purities, and mass spectra (LCMS) were obtained using one of the following methods:

Method 1: Agilent 1260 Infinity II System equipped with an Agilent Poroshell 120 EC-18, 2.7 μm, 4.6×100 mm column at 30° C., using H₂O with 0.1% formic acid as the mobile phase A, and MeCN with 0.1% formic acid as the mobile phase B. An ESI detector in positive mode was used. The gradient was 5-95% mobile phase B over 12 min then held at 95% for 1.8 min, then return to 10% mobile phase B over 0.2 min. The flow rate was 1 mL/min.

Method 2: SHIMADZU LCMS-2020 System equipped with a Kinetex EVO C18 2.1×30 mm column, (5 um particles), using H₂O with 0.0375% Trifluoroacetic Acid as the mobile phase A, and MeCN with 0.01875% Trifluoroacetic Acid as the mobile phase B. An ESI detector in positive mode was used. The gradient was 5% B at 0.00 min and 5-90% B at 0.00-0.80 min, 90-95% B at 0.80-0.12 min, and then 95-5% B in 0.01 min, hold on 5% B for 0.34 min, the flow rate was 1.5 ml/min.

Method 3: Agilent 1200 System equipped with a Kinetex C18 50*2.1 mm column, (Sum particles), using H₂O with 0.037% Trifluoroacetic Acid as the mobile phase A, and MeCN with 0.018% Trifluoroacetic Acid as the mobile phase B. An ESI detector in positive mode was used. The gradient was 5% B at 0.00 min and 5-90% B at 0.00-0.80 min, 90-95% B at 0.80-0.12 min, and then 95-5% B in 0.01 min, hold on 5% B for 0.34 min, the flow rate was 1.5 ml/min.

Method 4: SHIMADZU LCMS-2020 System equipped with a Kinetex EVO C18 2.1×30 mm column, (5 um particles), using H₂O with 0.0375% Trifluoroacetic Acid as the mobile phase A, and MeCN with 0.01875% Trifluoroacetic Acid as the mobile phase B. An ESI detector in positive mode was used. The gradient was 5% B at 0.00 min and 5-90% B at 0.00-0.80 min, 90-95% B at 0.80-0.12 min, and then 95-5% B in 0.01 min, hold on 5% B for 0.34 min, the flow rate was 1.5 ml/min.

Method 5: Agilent 1200 System equipped with an Xbridge Shield RP18 2.1*50 mm column (Sum particles), using H₂O with 10 mM NH₄HCO₃ as the mobile phase A, and MeCN as the mobile phase B. An ESI detector in positive mode was used. The gradient was 5-95% B in 0.30 min and 30-95% B at 0.30-0.80 min, hold on 95% B for 0.4 min, and then 95-5% B in 0.01 min, the flow rate was 1.5 ml/min.

Method 6: SHIMADZU LCMS-2020 System equipped with a Kinetex EVO C18 2.1×30 mm column, (Sum particles), using H2O with 0.0375% Trifluoroacetic Acid as the mobile phase A, and MeCN with 0.01875% Trifluoroacetic Acid as the mobile phase B. An ESI detector in positive mode was used. The gradient was 5% B at 0.00 min and 5-90% B at 0.00-0.80 min, 90-95% B at 0.80-0.12 min, and then 95-5% B in 0.01 min, hold on 5% B for 0.34 min, the flow rate was 1.5 ml/min.

Method 7: SHIMADZU LCMS-2020 System equipped with a Chromolith®Flash RP-18E 25-2 MM column, using H₂O with 0.0375% Trifluoroacetic Acid as the mobile phase A, and MeCN with 0.01875% Trifluoroacetic Acid as the mobile phase B. An ESI detector in positive mode was used. The gradient was 5% B at 0.00 min and 5-90% B at 0.00-0.80 min, 90-95% B at 0.80-0.12 min, and then 95-5% B in 0.01 min, hold on 5% B for 0.34 min, the flow rate was 1.5 ml/min.

Method 8: SHIMADZU LCMS-2020 System equipped with a Kinetex EVO C18 2.1×30 mm column, (Sum particles), using H₂O with 0.0375% Trifluoroacetic Acid as the mobile phase A, and MeCN with 0.01875% Trifluoroacetic Acid as the mobile phase B. An ESI detector in positive mode was used. The gradient was 5% B at 0.00 min and 5-90% B at 0.00-0.80 min, 90-95% B at 0.80-0.12 min, and then 95-5% B in 0.01 min, hold on 5% B for 0.34 min, the flow rate was 1.5 ml/min.

Method 9: Agilent 1290 Infinity II System equipped with an Agilent Poroshell 120 EC-18, 2.7 μm, 4.61×100 mm column at 35° C., using H₂O with 0.1% formic acid as the mobile phase A, and MeCN with 0.1% formic acid as the mobile phase B. An ESI detector in positive mode was used. The gradient was 5-95% mobile phase B over 8.0 min then held at 95% for 1.8 mins, then return to 20% mobile phase B over 0.2 min. The flow rate was 0.7 mL/min.

Method 10: Agilent 1260 Infinity II System equipped with an Agilent Poroshell 120 EC-18, 2.7 μm, 4.6×100 mm column at 30° C., using H₂O with 0.1% formic acid as the mobile phase A, and MeCN with 0.1% formic acid as the mobile phase B. An ESI detector in positive mode was used. The gradient was 5-95% mobile phase B over 5 min then held at 95% for 1.8 min, then return to 20% mobile phase B over 0.2 min. The flow rate was 1 mL/min.

Method 11: Agilent 1290 Infinity II System equipped with an Agilent Poroshell 120 EC-18, 1.9 μm, 2.1×50 mm column at 35° C., using H₂O with 0.1% formic acid as the mobile phase A, and MeCN with 0.1% formic acid as the mobile phase B. An ESI detector in positive mode was used. The gradient was 20-95% mobile phase B over 0.8 min then held at 95% for 0.7 mins, then return to 20% mobile phase B over 0.7 min. The flow rate was 0.7 mL/min.

The pyridine, dichloromethane (DCM), tetrahydrofuran (THF), and toluene used in the procedures were from Aldrich Sure-Seal bottles kept under nitrogen (N₂). Other solvents were used as is. All reactions were stirred magnetically, and temperatures are external reaction temperatures. Chromatographies were typically carried out using a Combiflash Rf flash purification system (Teledyne Isco) equipped with Redisep (Teledyne Isco) Rf Gold Normal-Phase silica gel (SiO₂) columns or by using a similar system.

Preparative HPLC purifications were typically performed using one of the following systems: 1) Waters System equipped with a Waters 2489 uv/vis detector, an Aquity QDA detector, a Waters xBridge Prep C18 5 μm OBD, 30×150 mm column, and eluting with various gradients of H₂O/MeCN (0.1% formic acid) at a 30 mL/min flow rate, 2) Teledyne Isco ACCQPrep® HP150 UV system equipped with a Waters xBridge Prep C18 5 μm OBD, 30×150 mm column, and eluting with various gradients of H₂O/MeCN (0.1% formic acid) at a 42.5 mL/min flow rate, or 3) column: Phenomenex Synergi C18 150×30 mm-4 μm; mobile phase: [H₂O (0.225% formic acid)-MeCN];B %: 55%-85%,12 min) and were typically concentrated using a Genevac EZ-2.

The following additional abbreviations are used: ethyl acetate (EA), triethylamine (TEA), water (H2O, sodium chloride (NaCl), Hydrochloridric acid (HCl), methanol (MeOH), dimethyl sulfoxide (DMSO), silica gel (SiO₂), diisobutylaluminium hydride (DIBAL), trifluoroacetic acid (TFA), 4-dimethylaminopyridine (DMAP), diphenylphosphoryl azide (DPPA), benzoyl peroxide (BPO), 1,1′-bis(diphenylphosphino)ferrocene (dppf), bis(pinacolato)diboron (B₂pin₂), tetrahydrofuran (THF), 1,4-diazabicyclo[2.2.2]octane bis(sulfur dioxide) adduct (DABSO), hexafluorophosphate azabenzotriazole tetramethyl uronium (HATU), hydroxybenzotriazole (HOBt), N-methyl morpholine (NMM), N-Bromosuccinimide (NBS), diisopropylethyl amine (DIPEA or DIEA), diethyl azodicarboxylate (DEAD), diisopropyl azodicarboxylate (DIAD), 2-[2-(dicyclohexylphosphino)phenyl]-N-methylindole (CM-Phos), triflic acid (TfOH), I-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC), isopropanol (IPA), dimethylformamide (DMF), dimethyl acetamide (DMA), dichloromethane (DCM), 1,2-dichloroethane (DCE), acetonitrile (MeCN or ACN), 1,1′-thiocarbonyldiimidazole (TCDI), petroleum ether (PE), not determined (ND), retention time (RT), molecular weight (mw), room temperature (rt), hour (h), and not applicable (N/A).

Example 1 Synthesis of Example 1

Step 1-1. Synthesis of tert-butyl ((1S,3R)-3-(4-methoxybenzamido)cyclohexyl)carbamate

To a stirring ice-cold solution of (1S,3R)-3-Amino-1-(Boc-amino)cyclohexane (1.142 g, 1.0 equiv., 5.329 mmol) in DCM (30 mL) was added with DIPEA (1.377 g, 1.9 mL, 2.0 equiv., 10.66 mmol), followed by slow addition of 4-methoxybenzoyl chloride (954.5 mg, 758 μL, 1.05 equiv., 5.595 mmol). The resulting mixture was allowed to stir at room temperature. After stirring for 18 hours, the reaction mixture was filtered, and the filter cake was washed with DCM and dried under high vacuum to yield tert-butyl ((1S,3R)-3-(4-methoxybenzamido)cyclohexyl)carbamate (1.659 g, 4.761 mmol, 89.35% yield).

LCMS-ESI (m/z) calculated: 348.44; found 349.2 [M+H]⁺, RT=4.239 min (Method 10).

¹H NMR (400 MHz, DMSO-d6) δ 8.09 (d, J=7.9 Hz, 1H), 7.82 (d, J=8.4 Hz, 2H), 6.97 (d, J=8.4 Hz, 2H), 6.83 (d, J=8.1 Hz, 1H), 3.80 (s, 3H), 3.79-3.71 (m, 1H), 3.31-3.22 (m, 1H), 1.93 (d, J=12.0 Hz, 1H), 1.77-1.68 (m, 3H), 1.38 (s, 9H), 1.31-1.17 (m, 3H), 1.11-1.01 (m, 1H).

Step 1-2. Synthesis of N-((1R,3S)-3-aminocyclohexyl)-4-methoxybenzamide

To a stirred suspension of tert-butyl ((1S,3R)-3-(4-methoxybenzamido)cyclohexyl)-carbamate (1.654 g, 1 Eq, 4.747 mmol) in EtOH (40 mL) was added 1.25M hydrogen chloride in 1,4-dioxane (1.731 g, 37.97 mL, 1.25 molar, 10 Eq, 47.47 mmol). The resulting mixture was stirred at 50° C. for 17 hours. The reaction mixture was directly concentrated to yield a white solid, which was further dried under high vacuum to yield N-((1R,3S)-3-aminocyclohexyl)-4-methoxybenzamide hydrochloride (1.331 g, 4.674 mmol, 98.46%). It was used without further purification in the next step.

LCMS-ESI (m/z) calculated: 248.44; found 249.2 [M+H]⁺, RT=1.665 min (Method 10).

¹H NMR (400 MHz, DMSO-d6) δ 8.26 (d, J=7.9 Hz, 1H), 8.09 (s, 3H), 7.84 (d, J=8.4 Hz, 2H), 6.98 (d, J=8.4 Hz, 2H), 3.91-3.81 (m, 1H), 3.80 (s, 3H), 3.13-3.05 (m, 1H), 2.12 (d, J=11.6 Hz, 1H), 1.91 (d, J=12.0 Hz, 1H), 1.78 (d, J=12.0 Hz, 2H), 1.44-1.21 (m, 4H).

Step 1-3. Synthesis of N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-4-methoxybenzamide (Example 1)

A pressure vial containing a solution of 4,6-dichloro-2-(trifluoromethyl)quinoline (56 mg, 1.0 equiv., 0.21 mmol) and N-((1R,3S)-3-aminocyclohexyl)-4-methoxybenzamide hydrochloride (60 mg, 1.0 equiv., 0.21 mmol) in DMSO (2 mL) was charged with DIPEA (0.11 g, 0.15 mL, 4.0 equiv., 0.84 mmol). The vial was closed and the resulting solution was stirred at 130° C. After stirring for 20 hours, the reaction mixture was cooled to room temperature. The reaction mixture was filtered, and the filtrate was purified by prep HPLC (ISCO ACCQPrep 150) to yield N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-4-methoxybenzamide (20 mg, 42 μmol, 20% yield).

LCMS-ESI (m/z) calculated: 477.91; found 478.2 [M+H]⁺, RT=7.477 min (Method 9).

¹H NMR (400 MHz, DMSO-d6) δ 8.61 (s, 1H), 8.18 (d, J=7.9 Hz, 1H), 7.89 (d, J=9.0 Hz, 1H), 7.83 (d, J=8.5 Hz, 2H), 7.74 (dd, J=9.0, 2.1 Hz, 1H), 7.50 (d, J=8.0 Hz, 1H), 7.01-6.89 (m, 3H), 4.07-3.98 (m, 1H), 3.92-3.84 (m, 1H), 3.80 (s, 3H), 2.16 (d, J=11.9 Hz, 1H), 1.97 (d, J=12.3 Hz, 1H), 1.91-1.78 (m, 2H), 1.60-1.47 (m, 2H), 1.44-1.29 (m, 2H).

Example 2 Synthesis of Example 2

Step 1-1. Synthesis of tert-butyl ((1S,3R)-3-benzamidocyclohexyl)carbamate

To an ice-cold solution of (1S,3R)-3-amino-1-(Boc-amino)cyclohexane (1.238 g, 1 Eq, 5.777 mmol) in DCM (30 mL) was added with DIPEA (1.493 g, 2.0 mL, 2 Eq, 11.55 mmol), followed by addition of benzoyl chloride (852.6 mg, 704.1 μL, 1.05 Eq, 6.066 mmol). The resulting mixture was allowed to stir at room temperature for 1 hour. The reaction mixture was filtered, and the filter cake was washed with DCM and dried under high vacuum to yield tert-butyl ((1S,3R)-3-benzamidocyclohexyl)carbamate (1.575 g, 4.946 mmol, 85.63% yield).

LCMS-ESI (m/z) calculated: 318.30; found 319.2 [M+H]⁺, RT=4.237 min (Method 10).

¹H NMR (400 MHz, DMSO-d6) δ 8.26 (d, J=7.9 Hz, 1H), 7.83 (d, J=7.5 Hz, 2H), 7.53-7.42 (m, 3H), 6.84 (d, J=8.0 Hz, 1H), 3.84-3.74 (m, 1H), 3.31-3.23 (m, 1H), 1.95 (d, J=12.0 Hz, 1H), 1.79-1.68 (m, 3H), 1.38 (s, 9H), 1.31-1.17 (m, 3H), 1.11-1.02 (m, 1H).

Step 1-2. Synthesis of N-((1R,3S)-3-aminocyclohexyl)benzamide hydrochloride

To a stirred white suspension of tert-butyl ((1S,3R)-3-benzamidocyclohexyl)-carbamate (1.570 g, 1 Eq, 4.931 mmol) in 1,4-dioxane (35 mL) was added 4M hydrogen chloride in 1,4-dioxane (10 Eq, 49.31 mmol). The resulting mixture was allowed to stir at 50° C. for 19 hours. The reaction mixture was directly concentrated, dried under high vacuum to yield N-((1R,3S)-3-aminocyclohexyl)benzamide hydrochloride (1.201 g, 4.714 mmol, 95.61% yield).

LCMS-ESI (m/z) calculated: 218.30; found 219.2 [M+H]⁺, RT=0.261 min (Method 11).

¹H NMR (400 MHz, DMSO-d6) δ 8.42 (d, J=7.9 Hz, 1H), 8.11 (s, 3H), 7.85 (d, J=7.5 Hz, 2H), 7.55-7.41 (m, 3H), 3.93-3.80 (m, 1H), 3.18-3.04 (m, 1H), 2.14 (d, J=11.8 Hz, 1H), 1.92 (d, J=12.0 Hz, 1H), 1.79 (d, J=11.4 Hz, 2H), 1.48-1.20 (m, 4H).

Step 1-3. Synthesis of N-((1R,3S)-3-((2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)benzamide (Example 2)

To a solution of 4-chloro-2-(trifluoromethyl)quinoline (55 mg, 1 Eq, 0.24 mmol) and N-((1R,3S)-3-aminocyclohexyl)benzamide hydrochloride (60 mg, 1 Eq, 0.24 mmol) in DMSO (2 mL) was added DIPEA (0.12 g, 0.16 mL, 4 Eq, 0.94 mmol). The vial was capped and the resulting solution was stirred at 130° C. for 18 hours. The reaction mixture was cooled to room temperature, passed through a syringe filter, and the filtrate was purified by prep HPLC (ISCO ACCQPrep 150) to yield N-((1R,3S)-3-((2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)benzamide (13.4 mg, 32.4 μmol, 14% yield).

LCMS-ESI (m/z) calculated: 413.44; found 414.3 [M+H]⁺, RT=5.687 min (Method 9).

¹H NMR (400 MHz, DMSO-d6) δ 8.42 (d, J=8.5 Hz, 1H), 8.34 (d, J=7.9 Hz, 1H), 7.92-7.80 (m, 3H), 7.73 (t, J=7.6 Hz, 1H), 7.58-7.37 (m, 5H), 6.90 (s, 1H), 4.10-3.99 (m, 1H), 3.93-3.82 (m, 1H), 2.19 (d, J=12.0 Hz, 1H), 2.01-1.80 (m, 3H), 1.56 (q, J=12.1 Hz, 2H), 1.46-1.29 (m, 2H).

Example 3 Synthesis of Example 3

Step 1-1. Synthesis of tert-butyl N-[(1S,3R)-3-[(4-fluorobenzoyl)amino]cyclohexyl]carbamate

To a solution of tert-butyl N-[(1S,3R)-3-aminocyclohexyl]carbamate (0.8 g, 3.73 mmol, 1 eq) and TEA (566.62 mg, 5.60 mmol, 779.39 uL, 1.5 eq) in DCM (5 mL) was added 4-fluorobenzoyl chloride (591.90 mg, 3.73 mmol, 448.41 uL, 1 eq) at 0° C. The resulting mixture was stirred at 0° C. for 1 hour. The reaction mixture was diluted with H2O (50 mL) and EA (50 mL). The mixture was filtered, the cake was concentrated under reduced pressure to give crude product. The filter liquor was extracted with EA (50 mL×2). The combined organic layers were washed with sat.aq NaCl (50 mL×3), dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to give crude product. The crude product was used into next step without further purification. Compound tert-butyl N-[(1S,3R)-3-[(4-fluorobenzoyl)amino]cyclohexyl]carbamate (1.26 g, crude) was obtained.

LCMS-ESI (m/z) calculated: 336.40; found 237.2 [M+H-Boc]⁺, RT=0.9 min (Method 2).

¹H NMR (400 MHz, DMSO-d6) δ=8.30 (d, J=8.0 Hz, 1H), 7.92-7.88 (m, 2H), 7.30-7.24 (m, 2H), 6.85 (d, J=8.0 Hz, 1H), 3.81-3.73 (m, 1H), 3.27-3.28 (m, 1H), 1.95 (d, J=11.2 Hz, 1H), 1.78-1.71 (m, 3H), 1.37 (s, 9H), 1.31-1.02 (m, 4H).

Step 1-2. Synthesis of N-[(1R,3S)-3-aminocyclohexyl]-4-fluoro-benzamide

The tert-butyl N-[(1S,3R)-3-[(4-fluorobenzoyl)amino]cyclohexyl]carbamate (1.16 g, 3.45 mmol, 1 eq) was added to HCl/MeOH (4 M, 15 mL, 17.40 eq) at 25° C. The mixture was stirred at 25° C. for 1 hour. The reaction mixture was concentrated under reduced pressure to give a residue. The residue was dissolved in MeOH (50 mL), and then resin(base) was added, filtered to remove the insoluble particles. The filter liquor was concentrated under reduced pressure to give crude product. The crude product was used into next step without further purification. Compound N-[(1R,3S)-3-aminocyclohexyl]-4-fluoro-benzamide (0.81 g, 3.43 mmol, 99.41% yield) was obtained.

¹H NMR (400 MHz, DMSO-d6) δ=8.52-8.46 (m, 1H), 7.96-7.92 (m, 2H), 7.30-7.25 (m, 2H), 3.85-3.83 (m, 1H), 3.06-3.01 (m, 1H), 2.14 (d, J=10.8 Hz, 1H), 1.93 (d, J=11.2 Hz, 1H), 1.78-1.76 (m, 2H), 1.49-1.26 (m, 4H).

Step 1-3. Synthesis of 4-fluoro-N-[(1R,3S)-3-[[2-(trifluoromethyl)quinazolin-4-yl]amino]cyclohexyl]benzamide (Example 3)

A mixture of 4-chloro-2-(trifluoromethyl)quinazoline (80 mg, 343.95 umol, 1 eq), N-[(1R,3S)-3-aminocyclohexyl]-4-fluorobenzamide (162.54 mg, 687.91 umol, 2 eq) and DIEA (222.27 mg, 1.72 mmol, 299.55 uL, 5 eq) in DMSO (2 mL) was stirred at 120° C. for 1 hour. The reaction mixture was filtered. The filtrate was purified by prep-HPLC (column: Unisil 3-100 C18 Ultra 150*50 mm*3 um; mobile phase: [water(0.225% FA)-ACN];B %: 50%-70%,10 min) and lyophilized. Compound 4-fluoro-N-[(1R,3S)-3-[[2-(trifluoromethyl)-quinazolin-4-yl]amino]cyclohexyl]benzamide (59.5 mg, 137.60 umol, 40.01% yield) was obtained.

LCMS-ESI (m/z) calculated: 432.4; found 433.2 [M+H-Boc]⁺, RT=0.941 min (Method 2).

¹H NMR (400 MHz, DMSO-d6) δ=8.54 (d, J=8.0 Hz, 1H), 8.45-8.38 (m, 2H), 7.93-7.81 (m, 4H), 7.69-7.65 (m, 1H), 7.31-7.25 (m, 2H), 4.34-4.29 (m, 1H), 4.00-3.89 (m, 1H), 2.19 (d, J=11.6 Hz, 1H), 1.99-1.85 (m, 3H), 1.62-1.30 (m, 4H).

Example 4 Synthesis of Example 4

Step 1-3. Synthesis of 4-methoxy-N-[(1R,3S)-3-[[5-methyl-2-(trifluoromethyl)-4-quinolyl]amino]cyclohexyl]benzamide

A mixture of 4-chloro-5-methyl-2-(trifluoromethyl)quinoline (120 mg, 488.54 umol, 1 eq), N-[(1R,3S)-3-aminocyclohexyl]-4-methoxy-benzamide (170 mg, 684.60 umol, 1.4 eq) and DIEA (189.42 mg, 1.47 mmol, 255.28 uL, 3 eq) in NMP (1 mL) was stirred at 120° C. for 16 h. The mixture was cooled to rt, filtered and concentrated. The filtrate was purified by prep-HPLC (column: Phenomenex luna C18 150*25 mm*10 um; mobile phase: [water(0.225% FA)-ACN];B %: 32%-62%,10 min) and lyophilized to afford compound 4-methoxy-N-[(1R,3S)-3-[[5-methyl-2-(trifluoromethyl)-4-quinolyl]amino]cyclohexyl] benzamide (8.7 mg, 19 umol, 4% yield).

LCMS-ESI (m/z) calculated: 457.5; found 458.1 [M+H]⁺, RT=0.846 min (Method 8).

¹H NMR (400 MHz, DMSO-d6) δ=8.44-8.38 (m, 1H), 8.18 (br d, J=7.6 Hz, 1H), 7.84 (d, J=8.9 Hz, 2H), 7.70 (d, J=8.1 Hz, 1H), 7.58-7.51 (m, 1H), 7.28 (d, J=7.0 Hz, 1H), 6.97 (d, J=8.9 Hz, 2H), 6.90-6.85 (m, 1H), 6.31 (br d, J=7.5 Hz, 1H), 4.06-3.95 (m, 1H), 3.85-3.75 (m, 4H), 2.96-2.90 (m, 3H), 2.32-2.24 (m, 1H), 2.11-2.03 (m, 1H), 1.89 (br d, J=10.8 Hz, 1H), 1.81 (br d, J=13.1 Hz, 1H), 1.61-1.45 (m, 2H), 1.39-1.26 (m, 2H).

Example 5 Synthesis of Example 5

Synthesis of 4-chloro-7-methyl-2-(trifluoromethyl)quinoline

A mixture of 7-methyl-2-(trifluoromethyl)quinolin-4-ol (150 mg, 660.26 umol, 1 eq) and POCl3 (2.02 g, 13.21 mmol, 1.23 mL, 20 eq) in ACN (1 mL) was stirred at 90° C. for 2 h. The mixture was cooled to 20° C. and slowly poured into water (20 mL), extracted with EtOAc (20 mL) and the organic layer was collected and concentrated under reduced pressure. The crude (150 mg) was directly used into next step without purification.

LCMS-ESI (m/z) calculated: 245.6; found 246.0 [M+H]⁺, RT=1.018 min (Method 2).

Step 1-2. Synthesis of 4-methoxy-N-[(1R,3S)-3-[[7-methyl-2-(trifluoromethyl)-4-quinolyl]amino]cyclohexyl]benzamide

A mixture of 4-chloro-7-methyl-2-(trifluoromethyl)quinoline (150 mg, 610.68 umol, 1 eq), N-[(1R,3S)-3-aminocyclohexyl]-4-methoxy-benzamide (227 mg, 914.14 umol, 1.5 eq) and DIEA (236.77 mg, 1.83 mmol, 319.10 uL, 3 eq) in NMP (0.5 mL) was stirred at 120° C. for 16 h. The mixture was cooled to rt, filtered and concentrated. The filtrate was purified by prep-HPLC (column: Phenomenex luna C18 150*25 mm*10 um; mobile phase: [water (0.225% FA)-ACN];B %: 32%-62%,10 min) and lyophilized to afford 4-methoxy-N-[(1R,3S)-3-[[7-methyl-2-(trifluoromethyl)-4-quinolyl]amino]cyclohexyl] benzamide (23.51 mg, 50.71 umol).

LCMS-ESI (m/z) calculated: 457.49; found 458.1 [M+H]⁺, RT=0.818 min (Method 2).

¹H NMR (400 MHz, DMSO-d6) δ=8.31 (d, J=8.8 Hz, 1H), 8.21-8.13 (m, 1H), 7.83 (d, J=8.8 Hz, 2H), 7.67 (s, 1H), 7.39 (dd, J=1.3, 8.7 Hz, 1H), 7.31 (d, J=8.1 Hz, 1H), 6.97 (d, J=8.8 Hz, 2H), 6.82 (s, 1H), 4.07-3.96 (m, 1H), 3.80 (s, 4H), 2.47 (s, 3H), 2.20-2.12 (m, 1H), 2.00-1.93 (m, 1H), 1.91-1.78 (m, 2H), 1.61-1.47 (m, 2H), 1.45-1.27 (m, 2H).

Example 6 Synthesis of Example 6

Step 1-1: Synthesis of N-[(1R,3S)-3-[[8-bromo-2-(trifluoromethyl)-4-quinolyl]amino]cyclohexyl]-4-methoxy-benzamide

To a solution of 8-bromo-4-chloro-2-(trifluoromethyl)quinoline (60 mg, 193.24 umol, 1 eq) in DMSO (1 mL) were added N-[(1R,3S)-3-aminocyclohexyl]-4-methoxy-benzamide (52.78 mg, 212.56 umol, 1.1 eq) and DIEA (49.95 mg, 386.48 umol, 67.32 uL, 2 eq). The mixture was stirred at 125° C. for 12 hr. The reaction mixture was added water (20 mL) and extracted with EA (20 mL×2). The organic layer was washed with brine, dried by Na2SO4. The solution was concentrated to give the residue. The residue was purified by prep-TLC (SiO2, PE:EA=2:1) to afford N-[(1R,3S)-3-[[8-bromo-2-(trifluoromethyl)-4-quinolyl]amino]cyclohexyl]-4-methoxy-benzamide (60 mg, 114.86 umol, 59% yield).

LCMS-ESI (m/z) calculated: 522.6; found 522.1/524.1 [M+H]⁺, RT=0.977 min (Method 2).

Step 1-2: Synthesis of 4-[[(1S,3R)-3-[(4-methoxybenzoyl)amino]cyclohexyl]amino]-2-(trifluoromethyl)quinoline-8-carboxylate

To a solution of N-[(1R,3S)-3-[[8-bromo-2-(trifluoromethyl)-4-quinolyl]amino]cyclohexyl]-4-methoxy-benzamide (60 mg, 114.86 umol, 1 eq), Et3N (34.87 mg, 344.59 umol, 47.96 uL, 3 eq) in MeOH (10 mL) was added Pd(dppf)C12.CH2Cl2 (9.38 mg, 11.49 umol, 0.1 eq) at 25° C. The suspension was degassed under vacuum and purged with CO several times. then warm to 70° C. and stirred at CO (50 psi) atmosphere for 16 hr. The reaction mixture was added Et3N (34.87 mg, 344.59 umol, 47.96 uL, 3 eq) and Pd(dppf)Cl₂.CH₂Cl₂ (28.14 mg, 34.46 umol, 0.3 eq) at 25° C. The suspension was degassed under vacuum and purged with CO several times. then warm to 70° C. and stirred at CO (50 psi) atmosphere for 16 hr. The reaction mixture was added thiourea (resin) (1 g) and stirred at 20° C. for 2 hr. Then the mixture was filtered. The filter cake was washed with MeOH (10 mL×3). The filtrate was concentrated to give a residue that was purified by prep-HPLC (column: Phenomenex luna C18 150*25 mm*10 um; mobile phase: [water(0.225% FA)-ACN];B %: 35%-65%,10 min). The purified solution was lyophilized to afford methyl 4-[[(1S,3R)-3-[(4-methoxybenzoyl)amino]cyclohexyl]amino]-2-(trifluoromethyl)quinoline-8-carboxylate (7.4 mg, 14.8 umol, 13% yield).

LCMS-ESI (m/z) calculated: 501.5; found 502.3 [M+H]⁺, RT=0.980 min (Method 2).

¹H NMR (400 MHz, DMSO) δ=8.56 (d, J=7.6 Hz, 1H), 8.18 (d, J=7.8 Hz, 1H), 7.89-7.80 (m, 3H), 7.59 (dd, J=7.2, 8.4 Hz, 1H), 7.53 (d, J=8.2 Hz, 1H), 7.00-6.94 (m, 3H), 4.09-3.96 (m, 1H), 3.87 (s, 4H), 3.80 (s, 3H), 2.17 (br d, J=11.9 Hz, 1H), 1.97 (br d, J=11.5 Hz, 1H), 1.92-1.77 (m, 2H), 1.55 (q, J=12.0 Hz, 2H), 1.46-1.26 (m, 21H).

The compounds listed in Table 1 were made using the procedures of Scheme 1.

TABLE 1 Purity Cpd RT Observed Purity Structure No. (min) MW m/z Ion Method

1-1  9.083 461.461 462.2 [M + H]⁺ Method 1

1-2  10.403 443.47 444.2 [M + H]⁺ Method 1

1-3  7.746 457.497 458.3 [M + H]⁺ Method 1

1-4  8.975 461.461 462.2 [M + H]⁺ Method 1

1-5  7.213 443.47 444.2 [M + H]⁺ Method 1

1-6  0.889 461.461 462.2 [M + H]⁺ Method 4

1-7  0.936 461.461 462.2 [M + H]⁺ Method 4

1-8  1.031 431.435 432.2 [M + H]⁺ Method 2

1-9  5.884 423.94 424.2 [M + H]⁺ Method 1

1-10 6.871 400.48 401.3 [M + H]⁺ Method 1

1-11 7.143 426.47 427.2 [M + H]⁺ Method 1

1-12 9.471 486.47 487.2 [M + H]⁺ Method 1

1-13 7.878 473.5 474.2 [M + H]⁺ Method 1

1-14 12.167 444.46 445.2 [M + H]⁺ Method 1

1-15 9.339 461.46 462.2 [M + H]⁺ Method 1

1-16 10.064 477.91 478.2 [M + H]⁺ Method 1

1-17 9.356 461.46 462.2 [M + H]⁺ Method 1

1-18 10.077 477.91 478.2 [M + H]⁺ Method 1

Example 7 Synthesis of Example 7

Step 2: Synthesis of 4-methoxy-N-((1R,3S)-3-((2-(trifluoromethyl)quinolin-5-yl)amino)cyclohexyl)benzamide

A mixture of 5-bromo-2-(trifluoromethyl)quinoline (96.9 mg, 1 Eq, 351 μmol), N-((1R,3S)-3-aminocyclohexyl)-4-methoxybenzamide hydrochloride (100 mg, 1 Eq, 351 μmol), cesium carbonate (343 mg, 3 Eq, 1.05 mmol), palladium(II) acetate (3.94 mg, 0.05 Eq, 17.6 μmol), and BINAP (21.9 mg, 0.10 Eq, 35.1 μmol) in 1,4-dioxane (3 mL) was degassed with nitrogen for 5 minutes. The vial was capped and the resulting mixture was stirred at 100° C. After stirring for 20 hours, the reaction mixture was cooled to room temperature, passed through a syringe filter, and the filtrate was directly loaded/purified by prep HPLC (ISCO ACCQPrep 150). The relevant fractions were lyophilized to yield 4-methoxy-N-((1R,3S)-3-((2-(trifluoromethyl)quinolin-5-yl)amino)cyclohexyl)benzamide (49.1 mg, 111 μmol, 31.5% yield).

LCMS-ESI (m/z) calculated: 443.47; found 444.2 [M+H]⁺, RT=0.987 min (Method 11).

¹H NMR (400 MHz, DMSO-d₆) δ 9.02 (d, J=8.8 Hz, 1H), 8.16 (d, J=7.8 Hz, 1H), 7.81 (dd, J=8.7, 6.8 Hz, 3H), 7.66 (t, J=8.1 Hz, 1H), 7.29 (d, J=8.3 Hz, 1H), 6.97 (d, J=8.4 Hz, 2H), 6.81 (d, J=7.9 Hz, 1H), 6.43 (d, J=7.6 Hz, 1H), 4.02-3.92 (m, 1H), 3.79 (s, 3H), 3.65-3.56 (m, 1H), 2.27 (d, J=12.1 Hz, 1H), 2.09-2.03 (m, 1H), 1.92-1.80 (m, 2H), 1.56-1.27 (m, 4H).

Example 8 Synthesis of Example 8

Step 2: Synthesis of 4-methoxy-N-((1R,3S)-3-((3-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)benzamide

A mixture of 4-bromo-3-(trifluoromethyl)quinoline (96.9 mg, 1 Eq, 351 μmol), N-((1R,3S)-3-aminocyclohexyl)-4-methoxybenzamide hydrochloride (100 mg, 1 Eq, 351 μmol), cesium carbonate (343 mg, 3 Eq, 1.05 mmol), palladium(II) acetate (3.94 mg, 0.05 Eq, 17.6 μmol), and BINAP (21.9 mg, 0.10 Eq, 35.1 μmol) in 1,4-dioxane (3 mL) was degassed with nitrogen. The vial was capped and the resulting mixture was stirred at 100° C. After stirring for 20 hours, the reaction mixture was cooled to room temperature, passed through a syringe filter, and the filtrate was directly loaded/purified by prep HPLC (ISCO ACCQPrep 150). The relevant fractions were directly lyophilized to yield 4-methoxy-N-((1R,3S)-3-((3-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)benzamide (6.5 mg, 15 μmol, 4.2% yield).

LCMS-ESI (m/z) calculated: 443.47; found 444.2 [M+H]⁺ RT=0.488 min (Method 11).

¹H NMR (400 MHz, DMSO-d₆) δ 8.70 (s, 1H), 8.37 (d, J=8.6 Hz, 1H), 8.18 (d, J=7.7 Hz, 1H), 7.93 (d, J=8.4 Hz, 1H), 7.80 (d, J=8.2 Hz, 3H), 7.61 (t, J=7.6 Hz, 1H), 6.96 (d, J=8.4 Hz, 2H), 6.03 (d, J=9.9 Hz, 1H), 3.79 (s, 5H), 2.07 (d, J=12.0 Hz, 1H), 1.95 (d, J=12.5 Hz, 1H), 1.80 (d, J=9.0 Hz, 2H), 1.65-1.47 (m, 2H), 1.37-1.24 (m, 2H).

The compounds listed in Table 2 were made using the procedures of Scheme 2.

TABLE 2 Structure Cpd No. Purity RT (min) MW Observed m/z Ion Purity Method

2-1 0.691 374.484 375.2 [M + H]⁺ Method 7

2-2 1.09  442.482 443.2 [M + H]⁺ Method 5

Example 9 Synthesis of Example 9

Synthesis of 2-(difluoromethyl)quinolin-4-ol

To PPA (26.85 mmol, 10 mL, 5.00 eq) was added aniline (0.5 g, 5.37 mmol, 490.20 uL, 1 eq) and ethyl 4,4-difluoro-3-oxobutanoate (891.92 mg, 5.37 mmol, 1 eq) at 140° C., then the reaction mixture was stirred at 140° C. for 12 hr. The reaction mixture was poured into water (50 mL) and extracted by ethyl acetate (4×50 mL). The combined organic phase was dried and concentrated under vacuo to give a residue. The residue was purified by column chromatography (silica gel, petroleum ether/ethyl acetate=1:2) to afford 2-(difluoromethyl)quinolin-4-ol (0.2 g, 1.02 mmol, 19.09% yield).

LCMS-ESI (m/z) calculated: 195.17; found 196.4 [M+H]⁺, RT=0.777 min (Method 2).

Synthesis of 4-chloro-2-(difluoromethyl) quinoline

To a solution of 2-(difluoromethyl)quinolin-4-ol (200 mg, 1.02 mmol, 1 eq) in DCE (3 mL) was added POCl3 (430 mg, 2.80 mmol, 260.61 uL, 2.74 eq) dropwise at 0° C. And the mixture was stirred at 80° C. for 12 hr. The reaction mixture was concentrated under reduced pressure to give a brown oil. The residue was purified by column chromatography (silica gel, petroleum ether/ethyl acetate=10:1) to give 4-chloro-2-(difluoromethyl)quinoline (200 mg, 936.28 umol, 91.36% yield).

LCMS-ESI (m/z) calculated: 213.61 found 214.0 [M+H]⁺, RT=0.930 min (Method 2).

Step 2: Synthesis of N-[(1R,3S)-3-[[2-(difluoromethyl)-4-quinolyl]amino]cyclohexyl]-4-methoxy-benzamide

A mixture of 4-chloro-2-(difluoromethyl)quinoline (30 mg, 140.44 umol, 1 eq), N-[(1R,3S)-3-aminocyclohexyl]-4-methoxybenzamide (34.87 mg, 140.44 umol, 1 eq), [2-(2-aminophenyl)phenyl]-methylsulfonyloxy-palladium;ditert-butyl-[2-(2,4,6-triisopropylphenyl)phenyl]phosphane (22.31 mg, 28.09 umol, 0.2 eq) and t-BuONa (26.99 mg, 280.88 umol, 2 eq) in tert-amyl alcohol (1 mL) was stirred at 100° C. for 3 hr. The reaction mixture was poured into water (10 mL) and extracted by ethyl acetate (2*10 mL), the organic phase was dried and concentrated under vacuo to give a residue. The residue was purified by prep-HPLC (column: Waters Xbridge 150*25 mm*5 um; mobile phase:[water(10 mM NH4HCO3)-ACN];B %: 32%-62%,8 min) to afford N-[(1R,3S)-3-[[2-(difluoromethyl)-4-quinolyl]amino]cyclohexyl]-4-methoxy-benzamide (3 mg, 6.69 umol, 4.76% yield).

LCMS-ESI (m/z) calculated: 425.47 found 426.2 [M+H]⁺, RT=0.797 min (Method 2).

Example 10 Synthesis of Example 10

Step 3-1. Synthesis of tert-butyl ((1R,3S)-3-((2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)carbamate

To a solution of 4-chloro-2-(trifluoromethyl)quinoline (1.08 g, 1 Eq, 4.65 mmol) and tert-butyl ((1R,3S)-3-aminocyclohexyl)carbamate (0.996 g, 1 Eq, 4.65 mmol) in DMSO (12 mL) was added DIPEA (2.40 g, 3.2 mL, 4 Eq, 18.6 mmol). The vial was capped and the resulting solution was stirred at 130° C. After stirring for 3 hours, the reaction mixture was cooled to room temperature. The reaction mixture was diluted with water and extracted 3× with EtOAc. The organic layers were combined, washed with brine, and concentrated under reduced pressure. The residue was purified by flash column chromatography (ISCO Gold 120 g, 0-80% EtOAc/hexanes) to yield tert-butyl ((1R,3S)-3-((2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)carbamate (0.584 g, 1.43 mmol, 30.7% yield).

LCMS-ESI (m/z) calculated: 409.45 found 410.3 [M+H]⁺, RT=4.976 min (Method 10).

¹H NMR (400 MHz, DMSO-d₆) δ 8.40 (d, J=8.5 Hz, 1H), 7.87 (d, J=8.4 Hz, 1H), 7.72 (t, J=7.6 Hz, 1H), 7.54 (t, J=7.6 Hz, 1H), 7.35 (d, J=8.1 Hz, 1H), 6.94-6.75 (m, 2H), 3.81-3.70 (m, 1H), 3.52-3.39 (m, 1H), 2.07 (d, J=12.0 Hz, 1H), 1.91 (d, J=12.2 Hz, 1H), 1.84-1.71 (m, 2H), 1.50-1.28 (m, 12H), 1.17-1.07 (m, 1H).

Step 3-2. Synthesis of (1S,3R)—N1-(2-(trifluoromethyl)quinolin-4-yl)cyclohexane-1,3-diamine hydrochloride

To a stirred suspension of tert-butyl ((1R,3S)-3-((2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)carbamate (580 mg, 1 Eq, 1.42 mmol) in 1,4-dioxane (10 mL) was added 4M hydrogen chloride in 1,4-dioxane (3.54 mL, 4.00 molar, 10 Eq, 14.2 mmol). The resulting mixture was stirred at 50° C. for 16 hours. The reaction mixture was filtered, and the filter cake was washed with diethyl ether and dried under high vacuum to yield (1S,3R)—N1-(2-(trifluoromethyl)quinolin-4-yl)cyclohexane-1,3-diamine hydrochloride (491 mg, 1.42 mmol, 100%).

LCMS-ESI (m/z) calculated: 309.2 found 310.2 [M+H]⁺, RT=1.294 min (Method 10).

¹H NMR (400 MHz, DMSO-d₆) δ 8.59 (d, J=8.5 Hz, 1H), 8.22 (s, 4H), 7.99 (d, J=8.4 Hz, 1H), 7.83 (t, J=7.7 Hz, 1H), 7.63 (t, J=7.6 Hz, 1H), 7.03 (s, 1H), 4.06-3.94 (m, 1H), 3.32-3.20 (m, 1H), 2.25 (d, J=11.7 Hz, 1H), 2.03-1.81 (m, 3H), 1.68-1.56 (m, 1H), 1.54-1.41 (m, 2H), 1.39-1.27 (m, 1H).

Step 3-3. Synthesis of 3-methoxy-N-((1R,3S)-3-((2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)benzamide

To the solution of (1S,3R)—N1-(2-(trifluoromethyl)quinolin-4-yl)cyclohexane-1,3-diamine (20 mg, 1 Eq, 65 μmol) and DIEA (25 mg, 3 Eq, 0.19 mmol) in DMF (1.5 mL) was added 3-(methoxycarbonyl)benzoic acid chloride (12 mg, 1.2 Eq, 78 μmol). The mixture solution was stirred at 25° C. for 18 hours. The crude mixture was purified by Water prep (20-90% 0.1% formic acid in MeCN and 0.1% formic acid in water) to yield 3-methoxy-N-((1R,3S)-3-((2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)benzamide (8.4 mg, 19 μmol, 29% yield).

LCMS-ESI (m/z) calculated: 443.47 found 444.20 [M+H]⁺, RT=7.592 min (Method 1).

¹H NMR (400 MHz, DMSO-d₆) δ 8.43 (d, J=8.5 Hz, 1H), 8.32 (d, J=7.9 Hz, 1H), 7.89 (d, J=8.4 Hz, 1H), 7.74 (t, J=7.7 Hz, 1H), 7.56 (t, J=7.6 Hz, 1H), 7.52-7.30 (m, 4H), 7.08 (d, J=8.2 Hz, 1H), 6.90 (s, 1H), 4.05 (d, J=11.8 Hz, 1H), 3.88 (d, J=7.9 Hz, 1H), 3.80 (d, J=1.8 Hz, 3H), 2.19 (d, J=12.1 Hz, 1H), 1.99 (d, J=12.2 Hz, 1H), 1.87 (dd, J=25.2, 12.8 Hz, 21H), 1.72-1.53 (m, 21H), 1.51-1.20 (m, 2H).

Example 11 Synthesis of Example 11

Step 3-1. Synthesis of tert-butyl ((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl) amino)cyclohexyl)carbamate

To a stirring solution of 4,6-dichloro-2-(trifluoromethyl)quinoline (1.241 g, 1 Eq, 4.666 mmol) and tert-butyl ((1R,3S)-3-aminocyclohexyl)carbamate (1.0 g, 1 Eq, 4.666 mmol) in DMSO (6 mL) was added DIPEA (2.41 g, 3.30 mL, 4 Eq, 18.7 mmol). The vial was capped and stirred at 130° C. for 3 hours. The reaction mixture was cooled to room temperature, diluted with water (10 mL) and extracted with EtOAc (3×15 mL). The organic layers were combined, washed with brine and concentrated in vacuo. The crude residue was purified by flash silica gel column chromatography (0-100% 10% MeOH in EtOAc and hexanes) to afford tert-butyl ((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)carbamate (1.229 g, 2.768 mmol, 59% yield).

Step 3-2. Synthesis of N-[(1R,3S)-3-[[7-chloro-2-(trifluoromethyl)-4-quinolyl]amino]cyclohexyl]propanamide

To tert-butyl ((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl) carbamate (1.229 g, 1 Eq, 2.768 mmol) in 1,4-Dioxane (10 mL) was added 4M hydrogen chloride in 1,4-dioxane (1.51 g, 10.4 mL, 4.00 molar, 15 Eq, 41.5 mmol). The vial was capped and was heated at 50° C. for 14 h. The reaction mixture was cooled to room temperature, filtered, and the filter cake was washed with diethyl ether (2×10 mL) and dried under high vacuum to yield (1S,3R)—N1-(6-chloro-2-(trifluoromethyl)quinolin-4-yl)cyclohexane-1,3-diamine hydrochloride (1.15 g, 3.02 mmol, 100% yield).

LCMS-ESI (m/z) calculated: 343.1 found 344.1 [M+H]⁺, RT=0.66 min (Method 11)

¹H NMR (400 MHz, DMSO-d₆) δ 8.64 (s, 1H), 7.95 (d, J=9.0 Hz, 1H), 7.91-7.84 (m, 1H), 7.79 (d, J=8.9 Hz, 1H), 6.97 (s, 1H), 3.97-3.85 (m, 1H), 3.57 (s, 3H), 3.31-3.19 (m, 1H), 2.30-2.22 (m, 1H), 2.04-1.89 (m, 2H), 1.88-1.79 (m, 1H), 1.64-1.27 (m, 4H).

Step 3-3. Synthesis of N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-2-methylbenzamide

To a solution of (1S,3R)—N1-(6-chloro-2-(trifluoromethyl)quinolin-4-yl)cyclohexane-1,3-diamine hydrochloride (60 mg, 1 Eq, 0.16 mmol) in DMF (2 mL) was added DIPEA (0.11 mL, 4 Eq, 0.63 mmol), followed by 2-methylbenzoyl chloride (26 mg, 22 μL, 1.05 Eq, 0.17 mmol). The resulting mixture was allowed to stir at room temperature for 1 hour. The reaction mixture was passed through a syringe filter, and the filtrate was directly loaded/purified by prep HPLC (ISCO ACCQPrep 150). The relevant fractions were directly lyophilized to yield N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-2-methylbenzamide (20 mg, 43 μmol, 27% yield).

LCMS-ESI (m/z) calculated: 461.91 found 462.2 [M+H]⁺, RT=1.025 min (Method 11)

¹H NMR (400 MHz, DMSO-d₆) δ 8.60 (s, 1H), 8.24 (d, J=8.1 Hz, 1H), 7.89 (d, J=9.0 Hz, 1H), 7.74 (d, J=8.9 Hz, 1H), 7.50 (d, J=8.1 Hz, 1H), 7.32-7.19 (m, 4H), 6.96 (s, 1H), 4.05-3.86 (m, 2H), 2.32 (s, 31H), 2.17 (d, J=12.1 Hz, 1H), 1.98-1.87 (m, 21H), 1.81 (d, J=13.3 Hz, 1H), 1.60-1.45 (m, 2H), 1.39-1.22 (m, 2H).

Example 12 Synthesis of Example 12

Step 3-1. Synthesis of tert-butyl ((1R,3S)-3-((6-methyl-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)carbamate

To a solution of tert-butyl ((1R,3S)-3-aminocyclohexyl)carbamate (1.0 g, 1 Eq, 4.7 mmol) and 4-chloro-6-methyl-2-(trifluoromethyl)quinoline (1.1 g, 1 Eq, 4.7 mmol) in DMSO (12 mL) was added DIPEA (1.2 g, 1.6 mL, 2 Eq, 9.3 mmol). The vial was capped and the resulting solution was stirred at 130° C. After stirring for 3 hours, the reaction mixture was cooled to room temperature. The reaction mixture was diluted with water and extracted (3×10 mL) with EtOAc. The organic layers were combined, washed with brine and concentrated under reduced pressure. The residue was dissolved in DCM and purified by flash column chromatography (ISCO Gold 120 g, 0-80% EtOAc/hexanes, 11 CV ramp). The relevant fractions were combined and concentrated under reduced pressure to yield tert-butyl ((1R,3S)-3-((6-methyl-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)carbamate (1.3 g, 3.1 mmol, 66% yield).

LCMS-ESI (m/z) calculated: 423.48 found 424.2 [M+H]⁺, RT=5.092 min (Method 10).

Step 3-2. Synthesis of (1S,3R)—N1-(6-methyl-2-(trifluoromethyl)quinolin-4-yl)cyclohexane-1,3-diamine hydrochloride

To tert-butyl ((1R,3S)-3-((6-methyl-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl) carbamate (1.3 g, 1 Eq, 3.1 mmol) in 1,4-Dioxane (10 mL) was added 4M hydrogen chloride in 1,4-dioxane (7.7 mL, 4.00 molar, 10 Eq, 31 mmol). After stirring at 50° C. for 18 hour, the reaction mixture was filtered, and the filter cake was washed with diethyl ether and dried under high vacuum to yield (1S,3R)—N1-(6-methyl-2-(trifluoromethyl)quinolin-4-yl)cyclohexane-1,3-diamine hydrochloride (1.1 g, 3.1 mmol, 100% yield).

LCMS-ESI (m/z) calculated: 323.82 found 324.2 [M+H]⁺, RT=2.28 min (Method 10).

Step 3-3. Synthesis of N-((1R,3S)-3-((6-methyl-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)benzamide

To a solution of (1S,3R)—N1-(6-methyl-2-(trifluoromethyl)quinolin-4-yl)cyclohexane-1,3-diamine hydrochloride (75 mg, 1 Eq, 0.21 mmol) in DMF (1.5 mL) was added DIPEA (0.15 mL, 4 Eq, 0.83 mmol), followed by benzoyl chloride (31 mg, 1.05 Eq, 0.22 mmol). The resulting mixture was allowed to stir at room temperature for 18 hours. The reaction mixture was passed through a syringe filter, and the filtrate was directly loaded/purified by prep HPLC (ISCO ACCQPrep 150). The relevant fractions were combined and lyophilized to yield N-((1R,3S)-3-((6-methyl-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl) benzamide (9.1 mg, 21 μmol, 10% yield).

LCMS-ESI (m/z) calculated: 427.47 found 428.3 [M+H]⁺, RT=0.848 min (Method 11)

¹H NMR (400 MHz, DMSO-d₆) δ 8.33 (d, J=7.9 Hz, 1H), 8.21 (s, 1H), 7.89-7.71 (m, 3H), 7.60-7.40 (m, 4H), 7.24 (d, J=8.0 Hz, 1H), 6.84 (s, 1H), 4.09-3.98 (m, 1H), 3.89-3.79 (m, 1H), 2.49 (s, 3H), 2.19 (d, J=12.0 Hz, 1H), 2.01-1.79 (m, 3H), 1.62-1.48 (m, 2H), 1.45-1.30 (m, 2H).

Example 13 Synthesis of Example 13

Step 3-3. Synthesis of N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)benzamide

To a solution of (1S,3R)—N1-(6-chloro-2-(trifluoromethyl)quinolin-4-yl)cyclohexane-1,3-diamine hydrochloride (45 mg, 1 Eq, 0.12 mmol) in DMF (1.5 mL) was added DIPEA (83 μL, 4 Eq, 0.47 mmol), followed by benzoyl chloride (17 mg, 1.05 Eq, 0.12 mmol). The resulting mixture was allowed to stir at room temperature for 1 hour. The reaction mixture was passed through a syringe filter, and the filtrate was directly loaded/purified by prep HPLC (ISCO ACCQPrep 150). The relevant fractions were directly lyophilized to yield N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino) cyclohexyl)benzamide (5 mg, 0.01 mmol, 9% yield).

LCMS-ESI (m/z) calculated: 447.89 found 448.2 [M+H]⁺, RT=1.000 min (Method 11)

¹H NMR (400 MHz, DMSO-d₆) δ 8.61 (s, 1H), 8.34 (d, J=7.9 Hz, 1H), 7.89 (d, J=9.0 Hz, 1H), 7.83 (d, J=7.6 Hz, 2H), 7.74 (d, J=9.0 Hz, 1H), 7.53-7.42 (m, 4H), 6.95 (s, 1H), 4.09-4.01 (m, 1H), 3.93-3.84 (m, 1H), 2.17 (d, J=12.0 Hz, 1H), 1.97 (d, J=12.2 Hz, 1H), 1.92-1.80 (m, 2H), 1.60-1.50 (m, 2H), 1.43-1.30 (m, 2H).

The compounds listed in Table 3 were made using the procedures of Scheme 3.

TABLE 3 Purity Observed Purity Structure Cpd No. RT (min) MW m/z Ion Method

3-1  7.906 443.47 444.2 [M + H]⁺ Method 1

3-2  7.606 427.47 428.2 [M + H]⁺ Method 1

3-3  7.317 470.54 471.2 [M + H]⁺ Method 1

3-4  7.497 438.45 439.2 [M + H]⁺ Method 1

3-5  7.717 471.48 472.2 [M + H]⁺ Method 1

3-6  6.927 438.45 439.2 [M + H]⁺ Method 1

3-7  7.419 438.45 439.2 [M + H]⁺ Method 1

3-8  8.449 447.89 448.2 [M + H]⁺ Method 1

3-9  7.849 431.43 432.2 [M + H]⁺ Method 1

3-10 7.715 431.43 432.2 [M + H]⁺ Method 1

3-11 7.789 393.45 394.1 [M + H]⁺ Method 6

3-12 8.807 461.91 462.3 [M + H]⁺ Method 1

3-13 7.813 452.48 453.2 [M + H]⁺ Method 1

3-14 8.214 445.46 446.2 [M + H]⁺ Method 1

3-15 7.931 457.50 458.3 [M + H]⁺ Method 1

3-16 8.050 441.50 442.3 [M + H]⁺ Method 1

3-17 10.007 482.33 482.2 [M + H]⁺ Method 1

3-18 10.269 477.91 478.2 [M + H]⁺ Method 1

3-19 6.287 463.89 464.2 [M + H]⁺ Method 1

3-20 8.298 561 561.2 [M + H]⁺ Method 1

Example 14 Synthesis of Example 14

Step 4. Synthesis of N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-3-(methylsulfonamido)benzamide

To a stirring solution of (1S,3R)—N1-(6-chloro-2-(trifluoromethyl)quinolin-4-yl)cyclohexane-1,3-diamine hydrochloride (90 mg, 1 Eq, 0.24 mmol) in DMF (2 mL) was added 3-(methylsulfonamido)benzoic acid (51 mg, 1 Eq, 0.24 mmol) HATU (0.10 g, 1.1 Eq, 0.26 mmol) and N-ethyl-N-isopropylpropan-2-amine (DIPEA) (92 mg, 0.12 mL, 3 Eq, 0.71 mmol). The reaction mixture was stirred at room temperature overnight. The reaction mixture was filtered and purified by reversed phase prep HPLC (35-->55% 0.1% formic acid in MeCN and 0.1% formic acid in H2O) to afford N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-3-(methylsulfonamido)benzamide (66.4 mg, 123 μmol, 52% yield).

LCMS-ESI (m/z) calculated: 540.99 found 541.2 [M+H]⁺, RT=0.906 min (Method 11)

Example 15 Synthesis of Example 15

Step 4: Synthesis of 2-amino-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyrimidine-5-carboxamide

To a solution of 2-aminopyrimidine-5-carboxylic acid (12 mg, 1 Eq, 87 μmol) in DMF (2 mL) was added HATU (50 mg, 1.5 Eq, 0.13 mmol). The resulting solution was allowed to stir at room temperature for 10 minutes. To the mixture was subsequently added (1S,3R)—N1-(6-chloro-2-(trifluoromethyl)quinolin-4-yl)cyclohexane-1,3-diamine (30 mg, 1 Eq, 87 μmol). The resulting mixture was stirred at room temperature for 19 hours. The crude was directly purified by prep HPLC to afford 2-amino-N-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]pyrimidine-5-carboxamide (33 mg, 71 μmol, 82% yield)

LCMS-ESI (m/z) calculated: 464.88 found 465.2 [M+H]⁺, RT=7.332 min (Method 1)

¹H NMR (400 MHz, DMSO) δ 8.67 (d, J=1.6 Hz, 2H), 8.61 (d, J=2.4 Hz, 1H), 8.14 (d, J=7.8 Hz, 1H), 7.90 (d, J=9.0 Hz, 1H), 7.74 (dd, J=9.1, 2.2 Hz, 1H), 7.50 (d, J=7.9 Hz, 1H), 7.18 (s, 2H), 6.94 (s, 1H), 4.12-3.76 (m, 2H), 2.18 (d, J=12.0 Hz, 1H), 1.98 (d, J=12.1 Hz, 1H), 1.86 (dd, J=26.2, 13.0 Hz, 2H), 1.53 (dq, J=23.5, 12.6, 11.9 Hz, 2H), 1.45-1.18 (m, 2H).

Example 16 Synthesis of Example 16

Step 4. Synthesis of N-[(1R,3S)-3-[[2-(trifluoromethyl)-4-quinolyl]amino]cyclohexyl]propanamide

To a mixture of propionic acid (5 mg, 64 umol, 5 uL, 1 eq) in DMF (2 mL) was added DIPEA (8 mg, 64 umol, 11.10 uL, 1 eq), (1S,3R)—N1-[2-(trifluoromethyl)-4-quinolyl]cyclohexane-1,3-diamine (25 mg, 70 umol, 1.1 eq, HCl) and HATU (24 mg, 64 umol, 1 eq). The reaction mixture was stirred at 30° C. for 12 hr. The reaction mixture was concentrated in vacuo to give a residue. The residue was purified by prep-HPLC (column: Unisil 3-100 C18 Ultra 150*50 mm*3 um; mobile phase: [water(0.225% FA)-ACN];B %: 30%-50%,10 min) to yield N-[(1R,3S)-3-[[2-(trifluoromethyl)-4-quinolyl]amino]cyclohexyl]propanamide (3 mg, 7 umol, 12% yield).

LCMS-ESI (m/z) calculated: 365.4 found 366.1 [M+H]⁺, RT=0.731 min (Method 6).

Example 17 Synthesis of Example 17

N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-2-methoxy-1-methyl-1H-imidazole-5-carboxamide

To a solution of 2-chloro-N-[(1R,3S)-3-[[6-chloro-2-(trifluoromethyl)-4-quinolyl]amino]cyclohexyl]-3-methyl-imidazole-4-carboxamide (20 mg, 1 Eq, 41.13 umol) and CH3ONa (5.4 M, 3 Eq, 22.85 uL) was added in 2-methylbutan-2-ol (2 mL). The resulting solution was allowed at 70° C. for 23 hours. The crude was directly purified by prep-HPLC to afford N-[(1R,3S)-3-[[6-chloro-2-(trifluoromethyl)-4-quinolyl]amino]-cyclohexyl]-2-methoxy-3-methyl-imidazole-4-carboxamide (3.0 mg, 5.67 umol, 14% yield).

LCMS-ESI (m/z) calculated: 481.9 found 482.3[M+H]⁺, RT=0.472 min (Method 2).

¹H NMR (400 MHz, DMSO-d6) δ 8.62-8.58 (m, 1H), 8.37-8.29 (m, 1H), 7.94 (d, J=8.0 Hz, 1H), 7.89 (d, J=9.0 Hz, 1H), 7.76-7.71 (m, 1H), 7.48 (d, J=8.0 Hz, 1H), 7.28 (s, 1H), 6.92 (s, 1H), 3.95 (s, 4H), 3.88-3.80.

Example 18 Synthesis of Example 18

Synthesis of N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-6-((2-fluoroethyl)amino)nicotinamide

To a solution of N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-6-fluoronicotinamide (50 mg, 1 Eq, 0.11 mmol in NMP (4 mL) was charged with 2-fluoroethan-1-amine (6.8 mg, 1 Eq, 0.11 mmol), and DIPEA (42 mg, 56 μL, 3 Eq, 0.32 mmol). The resulting yellow solution was allowed to stir at 75° C. for 18 hours. The crude was directly purified by prep-HPLC to afford N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-6-((2-fluoroethyl)amino)nicotinamide (9.0 mg, 18 μmol, 16% yield).

LCMS-ESI (m/z) calculated: 509.93; found 510.2 [M+H]⁺, tR=7.013 min (Method 1).

The compounds listed in Table 4 were made using the procedures of Scheme 4.

TABLE 4 Cpd Purity Observed Purity Structure No. RT (min) MW m/z Ion Method

4-1  0.712 414.432 415.1 [M + H]⁺ Method 6

4-2  0.715 414.432 415.1 [M + H]⁺ Method 6

4-3  0.787 414.432 415.1 [M + H]⁺ Method 6

4-4  0.749 377.411 378.1 [M + H]⁺ Method 6

4-5  0.762 379.427 380.1 [M + H]⁺ Method 6

4-6  4.718 468.57 469.2 [M + H]⁺ Method 1

4-7  0.820 441.498 442.1 [M + H]⁺ Method 6

4-8  0.798 456.513 457.3 [M + H]⁺ Method 3

4-9  0.835 456.513 457.3 [M + H]⁺ Method 3

4-10  0.820 447.89 448.1 [M + H]⁺ Method 6

4-11  0.732 456.513 457.1 [M + H]⁺ Method 6

4-12  0.825 441.498 442.1 [M + H]⁺ Method 6

4-13  0.839 447.89 448.1 [M + H]⁺ Method 6

4-14  0.826 427.471 428.1 [M + H]⁺ Method 6

4-15  0.849 441.498 442.1 [M + H]⁺ Method 6

4-16  0.773 470.496 471.1 [M + H]⁺ Method 6

4-17  0.820 427.471 428.1 [M + H]⁺ Method 6

4-18  0.841 441.498 442.1 [M + H]⁺ Method 6

4-19  0.820 471.48 472.1 [M + H]⁺ Method 6

4-20  0.766 470.496 471.1 [M + H]⁺ Method 6

4-21  0.710 511.593 512.2 [M + H]⁺ Method 6

4-22  0.738 471.528 472.3 [M + H]⁺ Method 4

4-23  0.806 442.486 443.1 [M + H]⁺ Method 6

4-24  0.734 442.486 443.1 [M + H]⁺ Method 6

4-25  0.770 442.486 443.1 [M + H]⁺ Method 6

4-26  0.800 498.55 499.2 [M + H]⁺ Method 6

4-27  0.833 457.501 458 [M + H]⁺ Method 2

4-28  0.815 455.485 456 [M + H]⁺ Method 2

4-29  0.804 455.485 455.9 [M + H]⁺ Method 2

4-30  0.826 453.469 453.9 [M + H]⁺ Method 2

4-31  0.783 512.577 513 [M + H]⁺ Method 2

4-32  0.865 511.468 512.1 [M + H]⁺ Method 2

4-33  0.743 510.561 511.1 [M + H]⁺ Method 2

4-34  0.751 478.479 479.1 [M + H]⁺ Method 2

4-35  0.897 540.543 541.2 [M + H]⁺ Method 2

4-36  0.890 521.544 522 [M + H]⁺ Method 2

4-37  0.824 558.605 559.2 [M + H]⁺ Method 2

4-38  0.893 575.633 576.1 [M + H]⁺ Method 2

4-39  0.815 468.484 468.9 [M + H]⁺ Method 2

4-40  0.865 463.52 463.9 [M + H]⁺ Method 2

4-41  0.912 588.69 589.1 [M + H]⁺ Method 2

4-42  0.877 570.616 571.1 [M + H]⁺ Method 2

4-43  0.750 570.58 571.1 [M + H]⁺ Method 2

4-44  0.882 546.594 547.1 [M + H]⁺ Method 2

4-45  0.885 525.33 525.9 [M + H]⁺ Method 2

4-46  0.85 523.56 524 [M + H]⁺ Method 2

4-47  0.788 546.95 547 [M + H]⁺ Method 2

4-48  0.699 544.622 545.2 [M + H]⁺ Method 2

4-49  0.738 463.501 464.1 [M + H]⁺ Method 2

4-50  0.718 431.463 432.1 [M + H]⁺ Method 2

4-51  0.723 450.413 451 [M + H]⁺ Method 2

4-52  0.731 481.475 482.1 [M + H]⁺ Method 2

4-53  0.771 511.57 512.3 [M + H]⁺ Method 2

4-54  0.863 521.467 521.9 [M + H]⁺ Method 2

4-55  0.819 520.556 521 [M + H]⁺ Method 2

4-56  0.861 518.48 518.9 [M + H]⁺ Method 2

4-57  0.87 514.549 515 [M + H]⁺ Method 2

4-58  0.793 501.53 501.9 [M + H]⁺ Method 2

4-59  0.817 498.506 499 [M + H]⁺ Method 2

4-60  0.722 496.534 497.3 [M + H]⁺ Method 2

4-61  0.727 496.49 497.2 [M + H]⁺ Method 2

4-62  0.714 495.506 496.2 [M + H]⁺ Method 2

4-63  0.841 480.535 481.3 [M + H]⁺ Method 2

4-64  0.933 473.584 474 [M + H]⁺ Method 2

4-65  0.812 467.444 467.9 [M + H]⁺ Method 2

4-66  0.822 556.63 557.1 [M + H]⁺ Method 2

4-67  0.700 476.544 477.1 [M + H]⁺ Method 2

4-68  0.685 454.457 455.1 [M + H]⁺ Method 2

4-69  0.832 526.56 527.1 [M + H]⁺ Method 2

4-70  0.782 498.57 499 [M + H]⁺ Method 2

4-71  0.762 492.45 493.1 [M + H]⁺ Method 2

4-72  0.756 546.594 547.3 [M + H]⁺ Method 2

4-73  0.868 536.42 537.2 [M + H]⁺ Method 2

4-74  0.797 538.385 540.2 [M + H]⁺ Method 2

4-75  0.826 565.496 566.2 [M + H]⁺ Method 2

4-76  0.847 560.597 561.2 [M + H]⁺ Method 2

4-77  0.854 581.95 582.1 [M + H]⁺ Method 2

4-78  0.771 527.544 528.3 [M + H]⁺ Method 2

4-79  0.832 496.55 497.1 [M + H]⁺ Method 2

4-80  0.883 527.98 528 [M + H]⁺ Method 2

4-81  0.905 483.579 484 [M + H]⁺ Method 2

4-82  0.875 493.93 494 [M + H]⁺ Method 2

4-83  0.858 562.597 563.2 [M + H]⁺ Method 2

4-84  0.848 495.9 496.1 [M + H]⁺ Method 2

4-85  0.694 559.594 560.1 [M + H]⁺ Method 2

4-86  0.717 457.501 458 [M + H]⁺ Method 2

4-87  0.944 503.97 503.9 [M + H]⁺ Method 2

4-88  0.804 454.457 454.9 [M + H]⁺ Method 2

4-89  0.849 459.517 460 [M + H]⁺ Method 2

4-90  0.801 473.544 474.3 [M + H]⁺ Method 2

4-91  0.796 513.95 514.2 [M + H]⁺ Method 2

4-92  0.797 565.564 566.2 [M + H]⁺ Method 2

4-93  0.794 466.508 467.3 [M + H]⁺ Method 2

4-94  0.652 499.538 500.2 [M + H]⁺ Method 2

4-95  0.718 433.49 434.1 [M + H]⁺ Method 2

4-96  0.900 556.6 557 [M + H]⁺ Method 2

4-97  0.746 488.9 489.2 [M + H]⁺ Method 2

4-98  0.767 499.461 500.2 [M + H]⁺ Method 2

4-99  0.755 507.517 508.3 [M + H]⁺ Method 2

4-100 0.735 498.506 499.2 [M + H]⁺ Method 2

4-101 0.702 483.491 484.1 [M + H]⁺ Method 2

4-102 0.613 465.48 466.1 [M + H]⁺ Method 2

4-103 0.668 559.03 599.2 [M + H]⁺ Method 2

4-104 0.793 470.452 471.1 [M + H]⁺ Method 2

4-105 0.844 467.496 468 [M + H]⁺ Method 2

4-106 0.779 471.528 472.1 [M + H]⁺ Method 2

4-107 0.716 539.38 539 [M + H]⁺ Method 2

4-108 0.773 489.539 490.1 [M + H]⁺ Method 2

4-109 0.878 560.621 561.4 [M + H]⁺ Method 2

4-110 0.733 419.448 420.1 [M + H]⁺ Method 2

4-111 0.802 481.475 482.1 [M + H]⁺ Method 2

4-112 0.908 515.432 516.3 [M + H]⁺ Method 2

4-113 0.811 505.541 506.1 [M + H]⁺ Method 2

4-114 0.769 478.9 479.2 [M + H]⁺ Method 2

4-115 0.846 467.492 468.3 [M + H]⁺ Method 2

4-116 0.754 549.542 550.2 [M + H]⁺ Method 2

4-117 0.76 546.04 546 [M + H]⁺ Method 5

4-118 0.834 528.576 529 [M + H]⁺ Method 2

4-119 0.865 455.525 456.4 [M + H]⁺ Method 2

4-120 0.788 499.534 500.2 [M + H]⁺ Method 2

4-121 0.905 489.34 489.2 [M + H]⁺ Method 2

4-122 0.801 465.517 466.4 [M + H]⁺ Method 2

4-123 9.396 532.99 533.2 [M + H]⁺ Method 1

4-124 8.317 487.91 488.1 [M + H]⁺ Method 1

4-125 9.895 477.91 478.1 [M + H]⁺ Method 1

4-126 9.759 501.89 502.2 [M + H]⁺ Method 1

4-127 9.443 479.93 480.2 [M + H]⁺ Method 1

4-128 9.201 483.90 484.2 [M + H]⁺ Method 1

4-129 9.959 479.93 480.2 [M + H]⁺ Method 1

4-130 7.085 456.51 457.3 [M + H]⁺ Method 1

4-131 12.792 466.51 467.2 [M + H]⁺ Method 1

4-132 6.772 560.64 561.3 [M + H]⁺ Method 1

4-133 4.935 493.53 494.2 [M + H]⁺ Method 1

4-134 9.020 496.58 497.3 [M + H]⁺ Method 1

4-135 7.015 495.51 496.3 [M + H]⁺ Method 1

4-136 10.466 491.94 492.2 [M + H]⁺ Method 1

4-137 7.577 467.50 468.2 [M + H]⁺ Method 1

4-138 5.990 468.48 469.2 [M + H]⁺ Method 1

4-139 7.303 466.51 467.3 [M + H]⁺ Method 1

4-140 6.332 467.50 468.2 [M + H]⁺ Method 1

4-141 7.298 496.49 497.2 [M + H]⁺ Method 1

4-142 6.076 485.51 486.3 [M + H]⁺ Method 1

4-143 8.013 480.54 481.3 [M + H]⁺ Method 1

4-144 4.631 467.50 468.2 [M + H]⁺ Method 1

4-145 7.617 484.54 485.2 [M + H]⁺ Method 1

4-146 11.650 542.00 542.2 [M + H]⁺ Method 1

4-147 9.473 477.92 478.2 [M + H]⁺ Method 1

4-148 10.958 533.90 534.2 [M + H]⁺ Method 1

4-149 9.798 513.95 514.2 [M + H]⁺ Method 1

4-150 10.244 493.96 494.2 [M + H]⁺ Method 1

4-151 9.599 479.93 480.2 [M + H]⁺ Method 1

4-152 10.030 479.93 480.2 [M + H]⁺ Method 1

4-153 8.080 451.88 452.2 [M + H]⁺ Method 1

4-154 6.356 484.52 485.3 [M + H]⁺ Method 1

4-155 6.621 443.47 444.3 [M + H]⁺ Method 1

4-156 7.506 512.58 513.3 [M + H]⁺ Method 1

4-157 6.812 520.57 521.2 [M + H]⁺ Method 1

4-158 6.743 456.51 457.3 [M + H]⁺ Method 1

4-159 7.532 470.54 471.3 [M + H]⁺ Method 1

4-160 10.883 476.93 477.2 [M + H]⁺ Method 1

4-161 9.303 560.41 560.1 [M + H]⁺ Method 1

4-162 9.412 465.91 466.2 [M + H]⁺ Method 1

4-163 7.416 540.00 540.2 [M + H]⁺ Method 1

4-164 7.340 445.49 446.3 [M + H]⁺ Method 1

4-165 9.021 456.51 457.2 [M + H]⁺ Method 1

4-166 7.319 452.48 453.3 [M + H]⁺ Method 1

4-167 8.330 457.50 458.2 [M + H]⁺ Method 1

4-168 8.110 461.91 462.2 [M + H]⁺ Method 1

4-169 9.292 472.90 473.2 [M + H]⁺ Method 1

4-170 .813 419.483 420.2 [M + H]⁺ Method 6

4-171 0.841 473.531 474 [M + H]⁺ Method 2

4-172 0.823 496.524 497 [M + H]⁺ Method 2

4-173 0.766 479.544 480.2 [M + H]⁺ Method 2

4-174 0.764 485.507 486.1 [M + H]⁺ Method 2

4-175 0.778 509.577 510 [M + H]⁺ Method 2

4-176 0.851 471.500 472.1 [M + H]⁺ Method 2

4-177 0.756 460.505 461.3 [M + H]⁺ Method 2

4-178 0.744 512.577 513.3 [M + H]⁺ Method 2

4-179 0.864 497.498 498 [M + H]⁺ Method 2

4-180 0.843 471.460 472 [M + H]⁺ Method 2

4-181 0.772 530.555 531 [M + H]⁺ Method 2

4-182 0.747 445.490 446.3 [M + H]⁺ Method 2

4-183 0.619 402.421 403 [M + H]⁺ Method 2

4-184 0.707 471.456 472 [M + H]⁺ Method 2

4-185 0.744 468.480 469.1 [M + H]⁺ Method 2

4-186 0.693 454.457 455.2 [M + H]⁺ Method 2

4-187 0.773 457.453 458.3 [M + H]⁺ Method 2

4-188 0.692 471.484 472.3 [M + H]⁺ Method 2

4-189 0.677 453.469 454.3 [M + H]⁺ Method 2

4-190 0.902 473.560 474 [M + H]⁺ Method 2

4-191 0.657 430.431 431.1 [M + H]⁺ Method 2

4-192 0.817 525.970 526.1 [M + H]⁺ Method 2

4-193 0.862 549.380 549.3 [M + H]⁺ Method 2

4-194 0.705 480.495 481.1 [M + H]⁺ Method 2

4-195 0.866 470.472 471.3 [M + H]⁺ Method 2

4-196 0.82 480.495 481.3 [M + H]⁺ Method 2

4-197 0.829 471.460 472 [M + H]⁺ Method 2

4-198 0.825 509.533 510 [M + H]⁺ Method 2

4-199 0.808 489.970 490.1 [M + H]⁺ Method 2

4-200 0.842 487.550 488.3 [M + H]⁺ Method 2

4-201 0.848 470.510 470.9 [M + H]⁺ Method 2

4-202 0.852 466.508 467 [M + H]⁺ Method 2

4-203 0.869 472.530 472.9 [M + H]⁺ Method 2

4-204 0.638 486.459 487.3 [M + H]⁺ Method 2

4-205 0.812 487.499 488 [M + H]⁺ Method 2

4-206 0.841 453.469 453.9 [M + H]⁺ Method 2

4-207 0.933 482.463 483 [M + H]⁺ Method 2

4-208 0.812 478.519 479.2 [M + H]⁺ Method 2

4-209 0.843 483.550 484.2 [M + H]⁺ Method 2

4-210 0.794 573.780 574 [M + H]⁺ Method 2

4-211 9.298 486.92 487.1 [M + H]⁺ Method 1

4-212 9.706 472.90 473.2 [M + H]⁺ Method 1

4-213 10.821 516.99 517.2 [M + H]⁺ Method 1

4-214 9.147 476.93 477.2 [M + H]⁺ Method 1

4-215 8.614 463.89 464.1 [M + H]⁺ Method 1

4-216 9.64 490.96 491.2 [M + H]⁺ Method 1

4-217 10.582 482.33 482.1 [M + H]⁺ Method 1

4-218 8.086 505.93 506.1 [M + H]⁺ Method 1

4-219 9.841 500.95 501.2 [M + H]⁺ Method 1

4-220 8.886 476.93 477.2 [M + H]⁺ Method 1

4-221 6.036 491.94 492.2 [M + H]⁺ Method 1

4-222 10.389 487.91 488.1 [M + H]⁺ Method 1

4-223 9.278 486.92 487.2 [M + H]⁺ Method 1

4-224 9.275 516.91 517.1 [M + H]⁺ Method 1

4-225 9.646 504.96 505.1 [M + H]⁺ Method 1

4-226 7.979 488.90 489.1 [M + H]⁺ Method 1

4-227 9.005 505.90 506.2 [M + H]⁺ Method 1

4-228 9.364 569.04 570.2 [M + H]⁺ Method 1

4-229 0.861 480.535 481.3 [M + H]⁺ Method 8

4-230 0.875 475.472 476.2 [M + H]⁺ Method 4

4-231 0.766 421.440 422.1 [M + H]⁺ Method 6

4-232 9.588 605.02 605.2 [M + H]⁺ Method 1

4-233 8.967 576.97 577.2 [M + H]⁺ Method 1

4-234 9.270 590.99 591.2 [M + H]⁺ Method 1

4-235 9.879 587.03 587.2 [M + H]⁺ Method 1

4-236 9.641 487.91 488.2 [M + H]⁺ Method 1

4-237 6.626 513.95 514.1 [M + H]⁺ Method 1

4-238 8.026 515.93 516.2 [M + H]⁺ Method 1

4-239 10.094 465.88 466.1 [M + H]⁺ Method 1

4-240 8.628 540.99 541.1 [M + H]⁺ Method 1

4-241 9.044 555.01 555.2 [M + H]⁺ Method 1

4-242 6.912 488.90 489.1 [M + H]⁺ Method 1

4-243 8.659 581.05 581.2 [M + H]⁺ Method 1

4-244 8.089 488.90 489.1 [M + H]⁺ Method 1

4-245 7.351 488.90 489.1 [M + H]⁺ Method 1

4-246 6.843 487.91 488.1 [M + H]⁺ Method 1

4-247 6.983 487.91 488.1 [M + H]⁺ Method 1

4-248 6.240 487.91 488.1 [M + H]⁺ Method 1

4-249 10.689 482.33 482.1 [M + H]⁺ Method 1

4-250 9.273 515.92 516.2 [M + H]⁺ Method 1

4-251 9.623 587.03 587.2 [M + H]⁺ Method 1

4-252 0.757 459.473 460.1 [M + H]⁺ Method 6

4-253 0.876 504.960 505.2 [M + H]⁺ Method 8

4-254 0.899 449.518 450.2 [M + H]⁺ Method 4

4-255 0.860 501.890 502.1 [M + H]⁺ Method 4

4-256 0.824 537.587 538.2 [M + H]⁺ Method 4

4-257 0.979 580.470 579.17 [M + H]⁺ Method 4

4-254 8.809 559.98 559.1 [M + H]⁺ Method 1

4-259 8.604 534.96 535.2 [M + H]⁺ Method 1

4-260 10.357 551.79 551.1, 553.1 [M + H]⁺ Method 1

4-261 10.251 551.79 551.1, 553.0 [M + H]⁺ Method 1

4-262 10.953 504.96 505.1 [M + H]⁺ Method 1

4-263 8.061 488.90 489.2 [M + H]⁺ Method 1

4-264 6.518 501.94 502.1 [M + H]⁺ Method 1

4-265 6.403 501.94 502.2 [M + H]⁺ Method 1

4-266 6.454 501.94 502.1 [M + H]⁺ Method 1

4-267 9.622 490.89 491.1 [M + H]⁺ Method 1

4-268 8.839 539.38 539.1 [M + H]⁺ Method 1

4-269 9.557 583.83 583.1, 585.1 [M + H]⁺ Method 1

4-270 9.737 487.91 488.1 [M + H]⁺ Method 1

4-271 13.426 479.88 480.2 [M + H]⁺ Method 1

4-272 9.158 555.01 555.2 [M + H]⁺ Method 1

4-273 10.200 460.48 461.2 [M + H]⁺ Method 1

4-274 8.603 456.44 457.2 [M + H]⁺ Method 1

4-275 9.269 466.42 467.2 [M + H]⁺ Method 1

4-276 9.625 445.46 446.2 [M + H]⁺ Method 1

4-277 9.538 461.46 462.2 [M + H]⁺ Method 1

4-278 4.924 431.43 432.2 [M + H]⁺ Method 1

4-279 8.618 558.98 559.2 [M + H]⁺ Method 1

4-280 6.773 588.57 589.2 [M + H]⁺ Method 1

4-281 8.683 449.45 450.2 [M + H]⁺ Method 1

4-282 9.176 484.50 485.2 [M + H]⁺ Method 1

4-283 8.06 460.48 461.2 [M + H]⁺ Method 1

4-284 7.905 447.43 448.2 [M + H]⁺ Method 1

4-285 8.839 474.50 475.2 [M + H]⁺ Method 1

4-286 9.196 461.46 462.2 [M + H]⁺ Method 1

4-287 10.16 500.54 501.2 [M + H]⁺ Method 1

4-288 8.239 499.47 500.2 [M + H]⁺ Method 1

4-289 9.923 465.88 466.2 [M + H]⁺ Method 1

4-290 9.006 456.44 457.2 [M + H]⁺ Method 1

4-291 7.339 489.47 490.2 [M + H]⁺ Method 1

4-292 8.962 537.57 538.2 [M + H]⁺ Method 1

4-293 8.903 543.96 544.2 [M + H]⁺ Method 1

4-294 8.593 523.55 524.2 [M + H]⁺ Method 1

4-295 8.324 527.51 528.2 [M + H]⁺ Method 1

4-296 5.968 497.50 498.2 [M + H]⁺ Method 1

4-297 8.723 552.59 554.2 [M + H]⁺ Method 1

4-298 8.597 470.47 471.2 [M + H]⁺ Method 1

4-299 5.724 471.46 472.2 [M + H]⁺ Method 1

4-300 8.561 471.46 472.2 [M + H]⁺ Method 1

4-301 8.563 527.51 528.2 [M + H]⁺ Method 1

4-302 8.048 524.53 525.2 [M + H]⁺ Method 1

4-303 8.43 460.48 461.2 [M + H]⁺ Method 1

4-304 8.363 538.56 539.2 [M + H]⁺ Method 1

4-305 8.725 516.54 517.2 [M + H]⁺ Method 1

4-306 7.594 488.49 489.3 [M + H]⁺ Method 1

4-307 8.91 538.96 539.2 [M + H]⁺ Method 1

4-308 8.91 488.50 489.2 [M + H]⁺ Method 1

4-309 7.245 472.45 473.2 [M + H]⁺ Method 1

4-310 8.886 473.48 474.2 [M + H]⁺ Method 1

4-311 9.412 449.43 450.2 [M + H]⁺ Method 1

4-312 8.298 560.52 561.2 [M + H]⁺ Method 1

4-313 8.613 575.54 575.2 [M + H]⁺ Method 1

4-314 9.223 570.58 571.2 [M + H]⁺ Method 1

4-315 8.988 570.58 571.2 [M + H]⁺ Method 1

4-316 7.982 564.60 565.2 [M + H]⁺ Method 1

4-317 7.956 524.53 525.2 [M + H]⁺ Method 1

4-318 8.361 588.57 589.2 [M + H]⁺ Method 1

4-319 8.035 435.43 436.2 [M + H]⁺ Method 1

4-320 9.385 449.43 450.2 [M + H]⁺ Method 1

4-321 11.588 449.43 450.2 [M + H]⁺ Method 1

4-322 8.877 463.48 464.3 [M + H]⁺ Method 1

4-323 8.687 461.46 462.2 [M + H]⁺ Method 1

4-324 9.782 477.51 478.2 [M + H]⁺ Method 1

4-325 9.241 463.48 464.2 [M + H]⁺ Method 1

4-326 9.309 463.48 464.2 [M + H]⁺ Method 1

4-327 9.733 489.52 490.3 [M + H]⁺ Method 1

4-328 10.186 491.53 492.3 [M + H]⁺ Method 1

4-329 9.525 477.51 478.8 [M + H]⁺ Method 1

4-330 8.679 463.48 464.2 [M + H]⁺ Method 1

4-331 8.339 504.94 505.2 [M + H]⁺ Method 1

4-332 9.097 456.45 457.8 [M + H]⁺ Method 1

4-333 9.84 472.9 473.2 [M + H]⁺ Method 1

4-334 7.896 452.48 453.3 [M + H]⁺ Method 1

4-335 0.87 505.97 506.2 [M + H]⁺ Method 2

4-336 0.764 418.42 419.1 [M + H]⁺ Method 2

4-337 0.812 403.41 404.1 [M + H]⁺ Method 2

4-338 0.907 501.93 502.3 [M + H]⁺ Method 2

4-339 0.76 445.49 446.1 [M + H]⁺ Method 2

4-340 0.881 513.46 514.3 [M + H]⁺ Method 2

4-341 0.777 560.42 560 [M + H]⁺ Method 2

4-342 0.771 557.36 558 [M + H]⁺ Method 2

4-343 0.784 459.47 460.1 [M + H]⁺ Method 2

4-344 0.843 582.67 583.1 [M + H]⁺ Method 2

4-345 0.856 527.53 528 [M + H]⁺ Method 2

4-346 0.827 515.97 516.1 [M + H]⁺ Method 2

4-347 0.81 514.55 515.2 [M + H]⁺ Method 2

4-348 0.898 545.4 545.1 [M + H]⁺ Method 2

4-349 10.15 594.96 595.1 [M + H]⁺ Method 1

4-350 9.509 576.97 577.1 [M + H]⁺ Method 1

4-351 7.06 464.87 465.2 [M + H]⁺ Method 1

4-352 9.249 555.01 555.2 [M + H]⁺ Method 1

4-353 8.814 558.98 559.1 [M + H]⁺ Method 1

4-354 0.822 560.42 562 [M + H]⁺ Method 2

4-355 0.676 460.51 461 [M + H]⁺ Method 2

4-356 0.873 437.49 438.2 [M + H]⁺ Method 5

4-357 0.875 568.64 569.3 [M + H]⁺ Method 2

4-358 0.829 529.56 530.2 [M + H]⁺ Method 2

4-359 0.796 532.37 532.2 [M + H]⁺ Method 2

4-360 0.788 574.77 575.1 [M + H]⁺ Method 2

4-361 0.824 480.5 481.3 [M + H]⁺ Method 2

4-362 0.664 532.37 532 [M + H]⁺ Method 2

4-363 0.743 564.65 565.2 [M + H]⁺ Method 2

4-364 0.693 453.51 454 [M + H]⁺ Method 2

4-365 0.695 540.4 540 [M + H]⁺ Method 2

4-366 8.168 465.91 466.2 [M + H]⁺ Method 1

4-367 10.196 519.88 520.2 [M + H]⁺ Method 1

4-368 7.305 437.85 438.2 [M + H]⁺ Method 1

4-369 7.891 437.85 438.2 [M + H]⁺ Method 1

4-370 10.866 507.99 508.2 [M + H]⁺ Method 1

4-371 10.415 505.97 506.2 [M + H]⁺ Method 1

4-372 9.886 523.94 524.2 [M + H]⁺ Method 1

4-373 11.080 520 520.2 [M + H]⁺ Method 1

4-374 10.481 493.96 494.2 [M + H]⁺ Method 1

4-375 11.372 520 520.2 [M + H]⁺ Method 1

4-376 10.227 493.96 494.2 [M + H]⁺ Method 1

4-377 11.009 505.97 506.2 [M + H]⁺ Method 1

4-378 8.925 461.91 462.2 [M + H]⁺ Method 1

4-379 5.260 444.46 445.3 [M + H]⁺ Method 1

4-380 7.266 534.6 535.3 [M + H]⁺ Method 1

4-381 8.256 489.45 490.2 [M + H]⁺ Method 1

4-382 8.571 499.47 500.2 [M + H]⁺ Method 1

4-383 8.559 475.49 476.2 [M + H]⁺ Method 1

4-384 8.558 500.45 501.2 [M + H]⁺ Method 1

4-385 5.886 485.49 486.2 [M + H]⁺ Method 1

4-386 5.812 485.49 486.2 [M + H]⁺ Method 1

4-387 5.605 471.46 472.2 [M + H]⁺ Method 1

4-388 6.272 471.46 472.2 [M + H]⁺ Method 1

4-389 6.154 471.46 472.2 [M + H]⁺ Method 1

4-390 6.671 448.42 449.2 [M + H]⁺ Method 1

4-391 7.366 472.45 473.2 [M + H]⁺ Method 1

4-392 7.366 472.45 473.2 [M + H]⁺ Method 1

4-393 6.204 472.45 473.2 [M + H]⁺ Method 1

4-394 9.290 504.86 505.2 [M + H]⁺ Method 1

4-395 8.740 471.31 471.1 [M + H]⁺ Method 1

4-396 8.589 500.35 500.2 [M + H]⁺ Method 1

4-397 7.469 488.9 489.2, 245.2 [M + H]⁺ Method 1

4-398 6.429 488.9 489.2, 245.2 [M + H]⁺ Method 1

4-399 9.295 487.86 488.2 [M + H]⁺ Method 1

4-400 7.739 451.88 452.2 [M + H]⁺ Method 1

4-401 7.981 465.91 466.2 [M + H]⁺ Method 1

4-402 9.045 493.96 494.2 [M + H]⁺ Method 1

4-403 7.345 462.9 463.2 [M + H]⁺ Method 1

4-404 9.123 501.89 502.2 [M + H]⁺ Method 1

4-405 8.418 477.92 478.2 [M + H]⁺ Method 1

4-406 9.897 522.3 522.1 [M + H]⁺ Method 1

4-407 7.717 493.92 494.2 [M + H]⁺ Method 1

4-408 8.455 461.87 462.2 [M + H]⁺ Method 1

4-409 6.460 463.89 464.2, 232.7 [M + H]⁺ Method 1

4-410 5.896 504.98 505.2 [M + H]⁺ Method 1

4-411 9.245 466.86 467.2 [M + H]⁺ Method 1

4-412 9.057 486.32 486.2 [M + H]⁺ Method 1

4-413 0.539 506.95 507.3 [M + H]⁺ Method 2

4-414 0.731 478.9 479 [M + H]⁺ Method 2

4-415 0.882 488.94 489.1 [M + H]⁺ Method 2

4-416 8.533 450.89 451.2 [M + H]⁺ Method 1

4-417 9.279 464.92 465.2 [M + H]⁺ Method 1

4-418 0.506 498.33 498.1 [M + H]⁺ Method 2

4-419 9.408 451.87 452.2 [M + H]⁺ Method 1

4-420 0.551 525.36 525 [M + H]⁺ Method 2

4-421 9.307 474.504 475.2 [M + H]⁺ Method 1

4-422 8.614 497.97 498.2 [M + H]⁺ Method 1

4-423 8.489 510.92 511.2 [M + H]⁺ Method 1

4-424 8.608 438.84 439.2, 440.1, 441.2 [M + H]⁺ Method 1

4-425 9.673 454.9 455.2, 456.1, 457.1 [M + H]⁺ Method 1

4-426 8.929 464.92 465.2 [M + H]⁺ Method 1

4-427 9.113 464.92 465.2 [M + H]⁺ Method 1

4-428 10.116 467.94 468.1, 469.4, 470.1 [M + H]⁺ Method 1

4-429 8.738 471.31 471.1 [M + H]⁺ Method 1

4-430 8.19 491.7 492.2 [M + H]⁺ Method 1

Example 19 Synthesis of Example 19

Synthesis of N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-1-(2-fluoroethyl)-1H-pyrrole-3-carboxamide

To a stirring solution of methyl 1H-pyrrole-3-carboxylate (250 mg, 1 Eq, 2.00 mmol) in DMF (4 mL) at 0° C. was added sodium hydride (95.9 mg, 60% Wt, 1.2 Eq, 2.40 mmol). The reaction mixture was stirred for 10 minutes. 1-bromo-2-fluoroethane (380 mg, 1.5 Eq, 3.00 mmol) was added and the reaction mixture was warmed to room temperature. After stirring overnight at room temperature, H₂O (5 mL) was added. The aqueous layer was extracted with EtOAc (3×5 mL), washed with H₂O (3×5 mL), dried over sodium sulfate, filtered through Celite, and concentrated in vacuo to afford crude material. The crude material was purified by silica gel chromatography (0-->50% EtOAc and hexanes) to afford methyl 1-(2-fluoroethyl)-1H-pyrrole-3-carboxylate (205.3 mg, 1.199 mmol, 60.0% yield).

LCMS-ESI (m/z) calculated: 171.07 found 172.0 [M+H]⁺, RT=0.660 min (Method 11)

To a stirring solution of methyl 1-(2-fluoroethyl)-1H-pyrrole-3-carboxylate (205.3 mg, 1 Eq, 1.199 mmol) in THF (6 mL) was added sodium hydroxide (239.9 mg, 5.997 mL, 1 molar, 5 Eq, 5.997 mmol). The reaction mixture was heated at 50° C. for 12 h. Still SM remained. Added additional sodium hydroxide (239.9 mg, 5.997 mL, 1 molar, 5 Eq, 5.997 mmol) and heated at 70° C. overnight. 3M HCl was added (10 mL), extracted with EtOAc (3×10 mL), dried over sodium sulfate, filtered through Celite, and concentrated in vacuo to afford 1-(2-fluoroethyl)-1H-pyrrole-3-carboxylic acid (169.2 mg, 1.077 mmol, 90% yield).

LCMS-ESI (m/z) calculated: 157.05 found 158.0 [M+H]⁺, RT=0.487 min (Method 11)

N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-1-(2-fluoroethyl)-1H-pyrrole-3-carboxamide was synthesized using scheme 4 and starting from 1-(2-fluoroethyl)-1H-pyrrole-3-carboxylic acid and (1S,3R)—N1-(6-chloro-2-(trifluoromethyl)quinolin-4-yl)cyclohexane-1,3-diamine hydrochloride.

LCMS-ESI (m/z) calculated: 482.15 found 483.2 [M+H]⁺, RT=9.764 min (Method 1)

1H NMR (400 MHz, DMSO) δ 8.61 (s, 1H), 7.93-7.88 (m, 1H), 7.77-7.14 (m, 1H), 7.64-7.59 (m, 1H), 7.52-7.47 (m, 1H), 7.35 (s, 1H), 6.93 (s, 1H), 6.79-6.75 (m, 1H), 6.51-6.47 (m, 1H), 4.75-4.69 (m, 1H), 4.62-4.58 (m, 1H), 4.28-4.21 (m, 1H), 4.20-4.14 (m, 1H), 4.04-3.93 (m, 1H), 3.91-3.79 (m, 1H), 2.17-2.09 (m, 1H), 2.01-1.91 (m, 1H), 1.90-1.78 (m, 2H), 1.58-1.23 (m, 5H).

Example 20 Synthesis of Example 20

Synthesis of N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-3-cyano-1-(difluoromethyl)-1H-pyrazole-4-carboxamide

To a solution of N-[(1R,3S)-3-[[6-chloro-2-(trifluoromethyl)-4-quinolyl]amino]cyclohexyl]-3-cyano-1H-pyrazole-4-carboxamide (60 mg, 1 Eq, 129.63 umol), (2-chloro-2,2-difluoro-acetyl)oxysodium (39.53 mg, 2 Eq, 259.26 umol) and Cs2CO3 (84.47 mg, 2 Eq, 259.26 umol) in DMF (1 mL). The resulting solution was allowed to stir at 100° C. for 1 hour. The crude was directly purified by prep HPLC to afford N-[(1R,3S)-3-[[6-chloro-2-(trifluoromethyl)-4-quinolyl]amino]cyclohexyl]-3-cyano-1-(difluoromethyl)pyrazole-4-carboxamide (2.3 mg, 4.45 umol, 3.44% yield).

LCMS-ESI (m/z) calculated: 512.87 found 513.2 [M+H]⁺, RT=0.575 min (Method 2)

1H NMR (400 MHz, CHLOROFORM-d) δ 8.46 (s, 1H) 8.03 (br d, J=8.88 Hz, 1H) 7.71 (s, 1H) 7.65 (br d, J=8.76 Hz, 1H) 7.04-7.26 (m, 1H) 6.78 (s, 1H) 6.24 (br d, J=6.88 Hz, 1H) 5.01 (br d, J=6.88 Hz, 1H) 4.16-4.25 (m, 1H) 3.73 (br d, J=7.00 Hz, 1H) 2.63 (br d, J=11.13 Hz, 1H) 2.18-2.31 (m, 2H) 2.01-2.06 (m, 1H) 1.29-1.45 (m, 4H).

Example 21 Synthesis of Example 21

Synthesis of N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-3-(difluoromethyl)-1-(fluoromethyl)-1H-pyrazole-4-carboxamide

To a solution of N-[(1R,3S)-3-[[6-chloro-2-(trifluoromethyl)-4-quinolyl]amino]cyclohexyl]-3-(difluoromethyl)-1H-pyrazole-4-carboxamide (100 mg, 1 Eq, 188.58 umol in MeCN (2 mL) was added fluoro(iodo)methane (33.18 mg, 1.1 Eq, 207.44 umol) and K₂CO₃ (52.13 mg, 2 Eq, 377.16 umol) and stirred for 2 hours at 50° C. The crude was directly purified by prep-HPLC to afford N-[(1R,3S)-3-[[6-chloro-2-(trifluoromethyl)-4-quinolyl]amino]cyclohexyl]-5-(difluoromethyl)-1-(fluoromethyl)pyrazole-4-carboxamide (11.7 mg, 22.24 umol, 11.79% yield).

LCMS-ESI (m/z) calculated: 519.2 found 520.2 [M+H]⁺, RT=0.517 min (Method 2)

1H NMR (400 MHz, DMSO-d6) δ=8.60 (d, J=2.1 Hz, 1H), 8.49 (d, J=7.9 Hz, 1H), 8.27 (s, 1H), 7.90 (d, J=9.0 Hz, 1H), 7.88-7.60 (m, 2H), 7.50 (br d, J=8.0 Hz, 1H), 6.95 (s, 1H), 6.33 (s, 1H), 6.20 (s, 1H), 4.11-3.83.

Example 22 Synthesis of Example 22

Synthesis of 5-chloro-N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-1-methyl-1H-pyrrole-3-carboxamide

To a solution of 5-chloro-N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-1H-pyrrole-3-carboxamide (50 mg, 1 Eq, 0.11 mmol) in DMF (2 mL) at 0° C. was added sodium hydride (5.1 mg, 60% wt, 1.2 Eq, 0.13 mmol). After stirring for 30 minutes, iodomethane (23 mg, 9.9 μL, 1.5 Eq, 0.16 mmol) was added, and the resulting mixture was stirred at room temperature for 18 hours. The crude was directly purified by prep HPLC to afford 5-chloro-N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-1-methyl-1H-pyrrole-3-carboxamide (23.8 mg, 49.0 μmol, 46%).

LCMS-ESI (m/z) calculated: 485.33 found 485.2 [M+H]⁺, RT=9.522 min (Method 1).

¹H NMR (400 MHz, DMSO-d₆) δ 8.60 (s, 1H), 7.89 (d, J=8.9 Hz, 1H), 7.73 (d, J=9.2 Hz, 1H), 7.66 (d, J=8.1 Hz, 1H), 7.48 (d, J=7.9 Hz, 1H), 7.36 (s, 1H), 6.92 (s, 1H), 6.54 (s, 1H), 3.99-3.80 (m, 2H), 3.56 (s, 3H), 2.12 (d, J=12.1 Hz, 1H), 1.95 (d, J=12.4 Hz, 1H), 1.87-1.76 (m, 2H), 1.59-1.42 (m, 2H), 1.39-1.23 (m, 2H).

Example 23 Synthesis of Example 23

Synthesis of 5-chloro-N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-1-(2,2-difluoroethyl)-1H-pyrrole-3-carboxamide

To a solution of 5-chloro-N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-1H-pyrrole-3-carboxamide (88 mg, 1 Eq, 0.19 mmol) in DMF (2 mL) at 0° C. was added sodium hydride (9.0 mg, 60% Wt, 1.2 Eq, 0.22 mmol). After stirring for 30 minutes, 2,2-difluoroethyl trifluoromethanesulfonate (60 mg, 37 μL, 1.5 Eq, 0.28 mmol) was added, and the resulting mixture was stirred at room temperature for 18 hours. The crude was directly purified by prep HPLC to afford 5-chloro-N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-1-(2,2-difluoroethyl)-1H-pyrrole-3-carboxamide (53.7 mg, 100 μmol, 54%).

LCMS-ESI (m/z) calculated: 535.34 found 535.2 [M+H]⁺, RT=9.755 min (Method 1).

¹H NMR (400 MHz, DMSO-d₆) δ 8.60 (s, 1H), 7.89 (d, J=9.1 Hz, 1H), 7.75 (dd, J=14.6, 8.8 Hz, 2H), 7.52-7.41 (m, 2H), 6.92 (s, 1H), 6.62 (s, 1H), 6.31 (t, J=54.6 Hz, 1H), 4.45 (t, J=15.6 Hz, 2H), 4.02-3.81 (m, 2H), 2.12 (d, J=11.9 Hz, 1H), 1.96 (d, J=12.4 Hz, 1H), 1.88-1.77 (m, 2H), 1.60-1.43 (m, 2H), 1.40-1.23 (m, 2H).

Example 24 Synthesis of Example 24

Synthesis of 3-chloro-N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-1-(methylsulfonyl)-1H-pyrazole-4-carboxamide

To a suspension of 3-chloro-N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-1H-pyrazole-4-carboxamide (100 mg, 1 Eq, 212 μmol) in DCM (3 mL) was added triethylamine (85.7 mg, 118 μL, 4 Eq, 847 μmol), followed by DMAP (5.17 mg, 0.2 Eq, 42.3 μmol) and methanesulfonic anhydride (73.8 mg, 2 Eq, 423 μmol). The resulting mixture was stirred at room temperature for 1 hour, then at 50° C. for 1 hour. The crude was directly purified by prep HPLC to afford 3-chloro-N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-1-(methylsulfonyl)-1H-pyrazole-4-carboxamide (19.4 mg, 35.2 μmol, 16.6% yield).

LCMS-ESI (m/z) calculated: 550.38 found 550.1 [M+H]⁺, RT=9.645 min (Method 1)

¹H NMR (400 MHz, DMSO-d₆) δ 8.88 (s, 1H), 8.59 (s, 1H), 8.29 (d, J=7.7 Hz, 1H), 7.90 (d, J=9.0 Hz, 1H), 7.74 (d, J=9.1 Hz, 1H), 7.48 (d, J=8.0 Hz, 1H), 6.95 (s, 1H), 4.01-3.83 (m, 2H), 3.68 (s, 3H), 2.17 (d, J=11.8 Hz, 1H), 2.01-1.78 (m, 3H), 1.60-1.34 (m, 3H), 1.29-1.19 (m, 1H).

The compounds listed in Table 5 were made using the procedures of Scheme 5.

TABLE 5 Cpd Purity RT Observed Purity Structure No. (min) MW m/z Ion Method

5-1 9.353 496.17 497.2 [M + H]⁺ Method 1

5-2 9.058 496.17 497.2 [M + H]⁺ Method 1

5-3 0.565 525.36 526.9 [M + H]⁺ Method 2

5-4 9.28 514.93 515.2 [M + H]⁺ Method 1

5-5 9.573 514.93 515.2 [M + H]⁺ Method 1

5-6 10.067 499.36 499.2 [M + H]⁺ Method 1

5-7 8.912 528.36 528.1 [M + H]⁺ Method 1

Example 25 Synthesis of Example 25

Synthesis of 6-[(1R,3S)-3-{[6-chloro-2-(trifluoromethyl)quinolin-4-yl]amino}cyclohexyl]-5H,6H,7H-pyrrolo[3,4-b]pyridin-7-one

To a stirring solution of (1S,3R)—N1-(6-chloro-2-(trifluoromethyl)quinolin-4-yl)cyclohexane-1,3-diamine hydrochloride (50 mg, 1 Eq, 0.13 mmol) in DMF (1.5 mL) was added N-ethyl-N-isopropylpropan-2-amine (DIPEA) (85 mg, 0.12 mL, 5 Eq, 0.66 mmol) and methyl 3-(bromomethyl)picolinate (46 mg, 1.5 Eq, 0.20 mmol). The vial was capped and heated at 40° C. over the weekend. The crude product was purified by reversed phase HPLC (35-->55% 0.1% formic acid in H2O and 0.1% formic acid in MeCN) to afford 6-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-5,6-dihydro-7H-pyrrolo[3,4-b]pyridin-7-one (37.1 mg, 80.5 μmol, 61% yield).

LCMS-ESI (m/z) calculated: 460.13 found 461.2 [M+H]⁺, RT=8.116 min (Method 1)

¹H NMR (400 MHz, DMSO) δ 8.72 (s, 1H), 8.61 (s, 1H), 8.07 (d, J=7.9 Hz, 1H), 7.91 (d, J=8.7 Hz, 1H), 7.75 (d, J=9.6 Hz, 1H), 7.60-7.51 (m, 2H), 7.00 (s, 1H), 4.52 (app q, J=13.0 Hz, 2H), 4.43-4.29 (m, 1H), 4.09-3.98 (m, 1H), 2.20-2.12 (m, 1H), 2.04-1.98 (m, 1H), 1.94-1.76 (m, 3H), 1.69-1.56 (m, 2H), 1.52-1.40 (m, 1H).

Example 26 Synthesis of Example 26

Step 7. N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-4-isobutyrylpiperazine-1-carboxamide

To a stirring solution of di(1H-imidazol-1-yl)methanone (2.14 g, 5 Eq, 13.2 mmol) and triethylamine (348 mg, 479 μL, 1.3 Eq, 3.44 mmol) in DCM (20 mL) at 0° C. was added (1S,3R)—N1-(6-chloro-2-(trifluoromethyl)quinolin-4-yl)cyclohexane-1,3-diamine hydrochloride (1.00 g, 1 Eq, 2.64 mmol) in two portions separated by 10 minutes. The reaction mixture was stirred at 0° C. for 1 h and then 30 minutes at room temperature. The reaction mixture was concentrated in vacuo to afford N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-1H-imidazole-1-carboxamide that was dried under high vacuum and used as is.

To a stirring solution of N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-1H-imidazole-1-carboxamide (100 mg, 50% Wt, 1 Eq, 114 μmol) in DCM (1.5 mL) was added 2-methyl-1-(piperazin-1-yl)propan-1-one (89.2 mg, 5 Eq, 571 μmol) and N-ethyl-N-isopropylpropan-2-amine (DIPEA) (73.8 mg, 99.5 μL, 5 Eq, 571 μmol). The reaction mixture was stirred at room temperature overnight. The crude was purified by reversed phase prep HPLC to afford N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-4-isobutyrylpiperazine-1-carboxamide (29.1 mg, 55.3 μmol).

LCMS-ESI (m/z) calculated: 526 found 526.3 [M+H]⁺, RT=8.141 min (Method 1).

Example 27 Synthesis of Example 27

Step 5. Synthesis of N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-3-fluoro-3-methylazetidine-1-carboxamide

To a stirring solution of N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-3-hydroxy-3-methylazetidine-1-carboxamide (40 mg, 1.0 Eq, 0.088 mmol) in DCM (0.5 mL) at room temperature was added a solution of Deoxo-Fluor (29 mg, 1.5 Eq, 0.13 mmol). The reaction mixture was stirred at room temperature for 5 min. Sat. ammonium chloride solution (2 mL) was added dropwise. The aqueous layer was extracted with EtOAc/MeOH (5:1) (2×5 mL), dried over sodium sulfate, filtered through Celite, and concentrated in vacuo. The crude mixture was purified by prep HPLC to afford N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-3-fluoro-3-methylazetidine-1-carboxamide (23.5 mg, 51.2 μmol, 58%).

LCMS-ESI (m/z) calculated: 458.15 found 459.2 [M+H]⁺, RT=8.638 min (Method 1)

Example 28 Synthesis of Example 28

Synthesis of N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-2-methyl-6,7-dihydrothiazolo[5,4-c]pyridine-5(4H)-carboxamide

To an ice-cold solution of (1S,3R)—N1-(6-chloro-2-(trifluoromethyl)quinolin-4-yl)cyclohexane-1,3-diamine 60 mg, 1 Eq, 0.16 mmol) and DIPEA 0.10 g, 0.14 mL, 5 Eq, 0.79 mmol) in MeCN (2 mL) was added triphosgene (47 mg, 1 Eq, 0.16 mmol) in one portion. The resulting mixture was stirred at 0° C. for 10 minutes. To the mixture was subsequently added 4,5,6,7-tetrahydro-2-methylthiazolo[5,4-c]pyridine (61 mg, 2.5 Eq, 0.39 mmol), followed by DIPEA (50 mg, 70 μL, 2.5 eq.). The resulting mixture was stirred at 50° C. for 18 hours. The crude was directly purified by prep HPLC to afford N-((1R,3S)-3-((6-chloro-2-(trifluoromethyl)quinolin-4-yl)amino)cyclohexyl)-2-methyl-6,7-dihydrothiazolo[5,4-c]pyridine-5(4H)-carboxamide (52.6 mg, 100 μmol, 64% yield).

LCMS-ESI (m/z) calculated: 524.00 found 524.2 [M+H]⁺, RT=8.534 min (Method 1)

¹H NMR (400 MHz, DMSO-d₆) δ 8.60 (s, 1H), 7.89 (d, J=9.1 Hz, 1H), 7.73 (d, J=9.1 Hz, 1H), 7.45 (d, J=7.8 Hz, 1H), 6.88 (s, 1H), 6.51 (d, J=7.6 Hz, 1H), 4.51 (s, 2H), 3.82-3.60 (m, 4H), 2.67 (s, 2H), 2.58 (s, 3H), 2.11 (d, J=11.7 Hz, 1H), 1.94 (d, J=12.2 Hz, 1H), 1.79 (t, J=15.3 Hz, 2H), 1.53-1.37 (m, 2H), 1.35-1.19 (m, 2H).

The compounds listed in Table 6 were made using the procedures of Scheme 7.

TABLE 6 Cpd Purity RT Observed Purity Structure No. (min) MW m/z Ion Method

6-1  0.406 469.94 470.1 [M + H]⁺ Method 6

6-2  0.427 497.99 498.3 [M + H]⁺ Method 6

6-3  0.556 440.9 441.3 [M + H]⁺ Method 6

6-4  0.409 455.91 456.2 [M + H]⁺ Method 6

6-5  0.783 469.94 470 [M + H]⁺ Method 6

6-6  8.762 472.91 473.3, 474.2, 475.1 [M + H]⁺ Method 1

6-7  9.340 490.9 491.3 [M + H]⁺ Method 1

6-8  8.059 470.92 471.2, 472.2, 473.3 [M + H]⁺ Method 1

6-9  0.495 452.91 453.3 [M + H]⁺ Method 2

6-10 8.056 470.92 471.2, 472.2, 473.2 [M + H]⁺ Method 1

6-11 8.254 458.89 459.2 [M + H]⁺ Method 1

6-12 8.564 476.88 477.2 [M + H]⁺ Method 1

6-13 8.902 472.91 473.3 [M + H]⁺ Method 1

6-14 7.041 456.89 457.3, 458.2, 459.2 [M + H]⁺ Method 1

6-15 7.485 484.95 485.3 [M + H]⁺ Method 1

Example 29 MRGPR X2 Activity

CHO cells stably transfected to express human MRGPR X2 were maintained in an incubator at 37° C. with 5% CO₂ and grown in F12 (HAM) media with 10% fetal bovine serum (FBS), 1% Glutamax, 1% penicillin/streptomycin, 800 μg/mL Geneticin (G418), and 300 μg/mL Hygromycin B.

Cells were plated in a 384-well assay plate at 20,000 cells per well in 12 μL of Opti-MEM and kept in an incubator overnight. On the day of the assay, compounds solubilized at 10 mM in DMSO were added as a 10-point curve (30 uM final top concentration with 1:3 serial dilutions) using a Tecan D300E digital dispenser. Agonists were diluted in assay buffer (final concentrations of 5.7 mM Tris-HCl, 43 mM NaCl, 50 mM LiCl, pH=8) and 2 μL of the agonist Cortistatin-14 (CPC Scientific, catalog CORT-002) are added to each well. Final concentrations of agonists were 0.3 μM Cortistatin. Final concentrations of DMSO were kept consistent across the plate. Plates were incubated in the dark for 1 h at 37° C. and then for 1 h at room temperature. IP-1 standards and HTRF detection reagents were added according to the IP-One—Gq Kit purchased from Cisbio (part number 62IPAPEJ) and incubated in the dark for 1 h at room temperature. The plate was read on a Molecular Devices SpectraMax iD5 plate reader. The HTRF ratio was calculated from the raw data and graphed using GraphPad Prism to calculate an IC50 value for each compound.

Activity data for selected MRGPR X2 antagonists (versus 0.3 uM Cortistatin-14 agonist) are displayed in Table 6. The activity ranges are denoted as follows: “+++++” denotes antagonist activity <100 nM; “++++” denotes antagonist activity between 100 and 500 nM; “+++” denotes activity between 501 and 1000 nM; “++” denotes activity between 1001 and 2500 nM; and “+” denotes activity >2500 nM

TABLE 6 MRGPRX2 Cpd No. Antagonist Activity Example 1 +++++ Example 3 +++ Example 14 +++++ Example 15 +++++ Example 19 +++++ 1-3 +++++ 1-8 ++++ 3-5 ++++ 3-6 ++++ 3-19 +++++ 3-20 +++++ 4-18 ++++ 4-22 ++ 4-29 ++ 4-31 + 4-35 ++ 4-40 ++ 4-64 + 4-74 + 4-82 + 4-90 ++ 4-100 ++ 4-111 + 4-113 + 4-130 +++++ 4-159 ++++ 4-165 +++ 4-171 +++ 4-172 ++ 4-181 ++++ 4-183 ++ 4-216 ++++ 4-223 +++++ 4-225 +++++ 4-228 +++++ 4-239 ++++ 4-240 +++++ 4-241 +++++ 4-245 +++++ 4-249 ++++ 4-258 +++++ 4-263 +++++ 4-265 +++++ 4-271 +++++ 4-282 +++++ 4-284 +++++ 4-297 +++++ 4-302 +++++ 4-303 +++++ 4-304 +++++ 4-317 +++++ 4-325 ++++ 4-394 +++++ 4-396 +++++ 4-397 +++++ 4-398 +++++ 4-399 +++++ 4-400 +++++ 4-401 +++++ 4-402 +++++ 4-403 +++++ 4-404 +++++ 4-405 +++++ 4-406 +++++ 4-407 +++++ 4-408 +++++ 4-409 +++++ 4-410 +++++ 4-411 +++++ 4-412 +++++ 4-413 +++++ 4-414 +++++ 4-415 +++++ 4-416 +++++ 4-417 +++++ 4-418 +++++ 4-419 +++++ 4-420 +++++ 4-421 +++++ 4-422 +++++ 4-423 +++++ 4-424 +++++ 4-425 +++++ 4-426 +++++ 4-427 +++++ 4-430 +++++ 5-1 +++++ 5-5 +++++

Example 30 Mast Cell Beta-Hexosaminidase Release Assay

Human LAD2 cells (NIH) were maintained in an incubator at 37° C. with 5% CO₂ and cultured in StemPro-34 serum-free media (Gibco 10639011) supplemented with 2 mM L-glutamine, 100 U/ml penicillin, 50 mg/ml streptomycin and 100 ng/ml SCF (Invitrogen PEP0860), at a concentration of 2-5×10⁵ cells/mL, with hemidepletion every 1-2 weeks.

Cells were transferred to SCF-Free medium at 2.5×10⁵ cells/mL and kept in an incubator overnight. On the day of the assay, cells were washed twice in Assay Buffer (final concentrations 10 mM HEPES, 137 mM NaCl, 5.6 mM D-glucose, 2.7 mM KCl, 1 mM MgCl, 1.8 mM CaCl₂, 0.4 mM Na₂HPO₄.7H₂O, 0.04% BSA, pH=7.4) and plated in a 96-well v-bottom plate at 20,000 cells per well in 80 μL Assay Buffer. Antagonist compounds solubilized at 10 mM in DMSO were diluted in Assay Buffer to 10× final desired concentrations as a 10-point curve (10 μM final top concentration with 1:3 serial dilutions) and 10 μL added per well. Plates were then incubated for 1 hour at 37° C. Agonists were diluted in Assay Buffer to 10× desired concentrations and 10 μL of the appropriate agonist added to each well. The final concentration of Cortistatin-14 (Tocris 3374) used in antagonist assays was 500 nM. Final concentrations of DMSO were kept consistent across the plate. Plates were then incubated in a warm air oven for 30 minutes at 37° C., followed by centrifugation at 4° C. for 5 minutes at 450×g. 50 μL supernatant from each well was then transferred to a 96-well flat bottom plate containing 100 μL substrate solution per well (3.5 mg/mL p-Nitrophenyl-N-acetyl-β-D-glucosaminide (Sigma 487052) in Citrate Buffer containing a final concentration of 40 mM Citric Acid, 20 mM Na₂HPO₄.7H₂O, pH=4.5). To the cell pellets left in the remaining assay buffer, 150 μL 0.1% Triton-X-100 was then added to each well, resuspended by pipetting up and down, and 50 μL cell lysates transferred to a second 96-well flat bottom plate containing 100 μL substrate solution per well. Plates containing transferred supernatant and cell lysates were then incubated in a warm air oven for 90 minutes at 37° C. After incubation, 50 μL of 400 mM Glycine buffer (pH 10.7) was added into each well and the plate was read on a Molecular Devices SpectraMax iD5 plate reader (absorbance at 405 nm with reference filter at 620 nm). After background subtraction, the percentage degranulation (percent beta-hexosaminidase release) was calculated as 100×(supernatant values)/(supernatant+lysate values), followed by analysis using GraphPad Prism software to calculate an IC₅₀ value for each compound.

Activity data for selected MRGPR X2 antagonists in the Mast Cell Beta-Hexosaminidase Release Assay are displayed in Table 7. The activity ranges are denoted as follows: “+++++” denotes antagonist activity <100 nM; “++++” denotes antagonist activity between 100 and 500 nM; “+++” denotes activity between 501 and 1000 nM; “++” denotes activity between 1001 and 2500 nM; and “+” denotes activity >2500 nM.

TABLE 7 MRGPRX2 Cpd No. Antagonist Activity Example 1 +++++ Example 14 +++++ Example 15 +++++ 1-3 ++++ 1-8 + 3-4 ++ 4-225 +++++ 4-241 +++++ 4-303 +++++ 4-304 +++++ 4-306 +++++ 4-318 +++ 4-400 +++++ 4-411 +++++ 4-414 +++++ 4-420 +++++ 4-430 +++++

Example 31 Mouse Pharmacokinetics Studies

Compounds were formulated in 5% DMSO, 5% Solutol, and 90% PBS without Ca and Mg (pH 7.4) at a concentration of 5 mg/mL. Male C57BL/6 mice (n=3/compound) were administered a 50 mg/kg dose of each compound by oral gavage under a non-fasted condition. Blood samples were collected via the saphenous vein onto K2-EDTA at 0.25, 0.5, 1, 2, 4, 8 and 24 hours after dosing, and plasma was prepared and stored at −80° C. until analysis. Plasma sample preparation for analysis was done by protein precipitation using acetonitrile (including Verapamil as an internal standard) followed by centrifugation. Compound concentrations were determined in extracted plasma using LC-MS/MS relative to a 12 point standard curve covering the 1 to 4000 nM range. Non-compartmental analysis using Phoenix WinNonlin was used to estimate pharmacokinetic parameters including area under the curve, clearance, and half-life. The administered dose was confirmed by analysis of residual dosing material by UPLC-UV relative to a single point calibration sample. The results of these studies are presented in Table 8.

TABLE 8 Cmax AUC 0-last AUC 0-24 Compound Name (uM) (uM × hr) (uM × hr) PK: Tmax (hr) Example 1 6.1 78 78 8 Example 15 36 140 140 1 1-3 13 83 83 0.83 1-4 8.6 120 120 6.7 1-8 48 650 650 8 3-4 30 230 230 3.3 3-19 46 220 220 0.83 4-366 44 290 290 1 4-399 19 230 230 3.7 4-400 61 640 640 1.3 4-402 14 150 150 2 4-403 15 130 130 2.3 4-409 25 280 280 2.7 4-414 11 140 140 4 6-9 5.1 42 43 3.3

Example 32 Evans Blue Vascular Permeability Assay

8-10-week-old C57BL/6J (strain 000664; Jackson Laboratories) or MrgprX2 knockin (Mrgb2Kl; Escient Pharmaceuticals Inc.) mice were anesthetized with isoflurane and shaved on the back 5-6 days prior to the beginning of the study. On the day of the study, mice were dosed either with vehicle or EP8615 at 100, 30, 20, 10 or 3 mg/kg 3 hours prior to Evans blue injection. Animals were restrained and injected intravenously (IV) with 200 μl of 1% Evans Blue (cat. no. 314-13-6; Fisher Chemical) in 0.9% saline, before being placed under isoflurane. Ten minutes after IV injections animals were maintained under anesthesia and injected intradermally with 25 μl of vehicle PBS, cortistatin-14 (C-14; 300 nM; cat. no. 3374; Tocris Bioscience); Icatibant (HOE-140; 38 μM; Cat no. 3014; Tocris Bioscience) or goat anti-mouse IgE (50 μg/ml; ab9162; Abcam). Ten minutes after intradermal injection animals were photographed and sacrificed. The skin around the injection site was punctured with an 8 mm circular dermal punch and weighed and placed in 1.5 ml Eppendorf tubes. Evans blue dye was extracted from the tissue by adding 1 ml of Formamide (BP227-500; Fisher Scientific) in the tube which was then vortexed covered in foil and placed at 55° C. overnight. 200 μl of extracted dye in formamide was then placed into a 96 well plate in duplicate along with a standard curve of known Evans blue concentration standards. The plate was read at 620 nM on a plate reader and the results were expressed as g of dye per mg tissue. Statistical tests were performed with the software Graphpad Prism 8 (Graphpad Software). Data is expressed as mean and standard error of mean. Unpaired t-Tests were used to compare the statistical difference between groups.

The various embodiments described above can be combined to provide further embodiments. All of the U.S. patents, U.S. patent application publications, U.S. patent applications, foreign patents, foreign patent applications and non-patent publications referred to in this specification and/or listed in the Application Data Sheet are incorporated herein by reference, in their entirety. Aspects of the embodiments can be modified, if necessary, to employ concepts of the various patents, applications and publications to provide yet further embodiments.

These and other changes can be made to the embodiments in light of the above-detailed description. In general, in the following claims, the terms used should not be construed to limit the claims to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled. Accordingly, the claims are not limited by the disclosure.

This application claims the benefit of priority to U.S. Provisional Application No. 63/083,638, filed Sep. 25, 2020, U.S. Provisional Application No. 63/145,407, filed Feb. 3, 2021, and 63/211,987, filed Jun. 17, 2021, which applications are hereby incorporated by reference in their entireties. 

1. A compound having structure (I):

or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein: R¹ is cycloalkyl, aryl, heterocyclyl, —(CH₂)_(n)Q, —CHQR, or —CQ(R)₂, where Q is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, —OR, —CH₂C(O)OR, —C(O)OR, —C(O)NHR, —OC(O)R, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)C(O)OR, or —N(R)S(O)₂R, and where R¹ and/or Q is optionally substituted with one or more R^(q); each R is independently H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, alkylamino, —(CH₂)_(n)R′, X, aryl, cycloalkyl, heteroaryl, or heterocyclyl, or two R groups together with the atom to which it is attached forms a carbocyle or heterocycle, wherein C₁₋₆ alkyl is optionally substituted with one or more of X, haloalkyl, or haloalkoxy; each R^(q) is independently C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, heterocyclyl, —OR, —O(CH₂)_(n)R, —OX₃, —OX₂H, —O(X)H₂, —C(O)OR, —C(O)R, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, S(O)₂R, —B(OR)₂, —C(H)Q′R, or —(CH₂)_(n)Q′, where Q′ is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, OR′, —C(O)OR′, —OC(O)R′, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R′)₂, —N(R′)C(O)R′, or —N(R′)S(O)₂R′; R², R³, R⁴, R⁵, and R⁶ are independently H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, heterocyclyl, —OR, —C(O)OR, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, C(X)₂R, —C(X)(R)₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, or S(O)₂R; each R^(x) is independently H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, heterocyclyl, —OR, —C(O)OR, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, or S(O)₂R; W is N or CR^(w); Z is N or CR^(z); R^(w) is H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, or heterocyclyl; R^(z) is H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, or heterocyclyl; each R′ is independently H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, or heterocyclyl; each X is independently F, Cl, Br, or I; and each n is independently 0, 1, 2, 3, 4 or
 5. 2. The compound of claim 1, having formula (Ia):

or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein: R^(1a) is cycloalkyl, —(CH₂)_(n)Q, —CHQR, or —CQ(R)₂; Q is cycloalkyl, —OR, —C(O)OR, —OC(O)R, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, or —N(R)S(O)₂R; and where R^(1a) and/or Q is optionally substituted with one or more R^(q).
 3. The compound of claim 2, wherein R^(1a) is cycloalkyl.
 4. The compound of claim 2, wherein R^(1a) and/or Q is substituted with one or more R^(q).
 5. The compound of claim 4, wherein R^(1a) is substituted with C₁₋₆ alkyl, C₂₋₆ alkenyl, aryl, cycloalkyl, heterocyclyl, —OR, —O(CH₂)_(n)R, —OX₃, —OX₂H, —O(X)H₂, —C(O)OR, —C(O)R, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, S(O)₂R, —C(H)Q′R, or —(CH₂)_(n)Q′, where Q′ is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, OR′, —C(O)OR′, —OC(O)R′, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R′)₂, —N(R′)C(O)R′, or —N(R′)S(O)₂R′.
 6. The compound of claim 4, wherein the one or more R^(q) is C₁₋₆ alkyl, aryl, heterocyclyl, —OR, —CN, —C(O)OR, or —(CH₂)_(n)Q′.
 7. The compound of claim 2, wherein R⁴ and R⁶ are independently C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, OR, —C(O)OR, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, or S(O)₂R.
 8. The compound of claim 7, wherein R⁶ is X, —CX₃, —CX₂H, or —C(X)H₂.
 9. The compound of claim 8, wherein R⁶ is —CF₃, —CF₂H, or CFH₂.
 10. The compound of claim 2, wherein R^(x) is H.
 11. The compound of claim 2, wherein W is N and Z is CH, or where W is CH and Z is N.
 12. The compound of claim 1, having formula (Ib):

or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein: R^(1b) is aryl, —(CH₂)_(n)Q, —CHQR, and —CQ(R)₂; where Q is aryl, —OR, —C(O)OR, —OC(O)R, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, or —N(R)S(O)₂R; and where R^(1b) and/or Q is optionally substituted with one or more R^(q).
 13. The compound of claim 12, wherein R^(1b) is aryl.
 14. The compound of claim 13, wherein R^(1b) is phenyl.
 15. The compound of claim 12, wherein R^(1b) and/or Q is substituted with one or more R^(q).
 16. The compound of claim 15, wherein R^(1b) is substituted with C₁₋₆ alkyl, C₂₋₆ alkenyl, aryl, cycloalkyl, heterocyclyl, —OR, —O(CH₂)_(n)R, —OX₃, —OX₂H, —O(X)H₂, —C(O)OR, —C(O)R, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, S(O)₂R, —B(OR)₂, —C(H)Q′R, or —(CH₂)_(n)Q′ where Q′ is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, OR′, —C(O)OR′, —OC(O)R′, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R′)₂, —N(R′)C(O)R′, or —N(R′)S(O)₂R′.
 17. The compound of claim 12, wherein R^(1b) optionally substituted with one or more R^(q) has one of the following structures:


18. The compound of claim 12, wherein R⁴ and R⁶ are independently H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, heterocyclyl, —OR, —C(O)OR, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, or S(O)₂R.
 19. The compound of claim 18, wherein R⁶ is X, —CX₃, —CX₂H, or —C(X)H₂.
 20. The compound of claim 19, wherein R⁶ is —CF₃, —CF₂H, or CFH₂.
 21. The compound of claim 12, wherein R^(x) is H.
 22. The compound of claim 12, wherein W is N and Z is CH, or where W is CH and Z is N.
 23. The compound of claim 1, having formula (Ic):

or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein: R^(1c) is heterocyclyl, —(CH₂)_(n)Q, —CHQR, or —CQ(R)₂, where Q is heterocyclyl, —OR, —C(O)OR, —OC(O)R, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, or —N(R)S(O)₂R, and where each R^(1c) or Q is optionally substituted with one or more R^(q).
 24. The compound of claim 23, wherein R^(1c) is heterocyclyl.
 25. The compound of claim 24, wherein heterocyle is aromatic and non-aromatic ring moieties containing 3 or more ring members, of which one or more is a heteroatom and is selected from N, O, S, or P.
 26. The compound of claim 23, wherein R^(1c) and/or Q is substituted with one or more R^(q).
 27. The compound of claim 26, wherein R^(1c) is substituted with C₁₋₆ alkyl, C₂₋₆ alkenyl, aryl, cycloalkyl, heterocyclyl, —OR, —O(CH₂)_(n)R, —OX₃, —OX₂H, —O(X)H₂, —C(O)OR, —C(O)R, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, S(O)₂R, —C(H)Q′R, or —(CH₂)_(n)Q′ where Q′ is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, OR′, —C(O)OR′, —OC(O)R′, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R′)₂, —N(R′)C(O)R′, or —N(R′)S(O)₂R′.
 28. The compound of claim 23, wherein R^(1c) optionally substituted with one or more R^(q) has one of the following structures:


29. The compound of claim 23, wherein R⁴ and R⁶ are independently H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, aryl, cycloalkyl, heteroaryl, heterocyclyl, —OR, —C(O)OR, —OC(O)R, X, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)S(O)₂R, or S(O)₂R.
 30. The compound of claim 29, wherein R⁶ is X, —CX₃, —CX₂H, or —C(X)H₂.
 31. The compound of claim 30, wherein R⁶ is —CF₃, —CF₂H, or CFH₂.
 32. The compound of claim 23, wherein R^(x) is H.
 33. The compound of claim 23, wherein W is N and Z is CH, or where W is CH and Z is N.
 34. The compound of claim 1, having formula (Id):

or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein: R^(1d) is CQ(R)₂; where Q is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, —OR, —CH₂C(O)OR, —C(O)OR, —C(O)NHR, —OC(O)R, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)C(O)OR, or —N(R)S(O)₂R; and where R^(1d) and/or Q is optionally substituted with one or more R^(q).
 35. The compound of claim 34, wherein Q is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl or N(R)C(O)R.
 36. The compound of claim 35, wherein R is independently C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, alkylamino, —(CH₂)_(n)R′, X, H, aryl, cycloalkyl, or heterocyclyl.
 37. The compound of claim 34, wherein R⁶ is X, —CX₃, —CX₂H, or —C(X)H₂.
 38. The compound of claim 37, wherein R⁶ is —CF₃, —CF₂H, or CFH₂.
 39. The compound of claim 34, wherein R^(x) is H.
 40. The compound of claim 34, wherein W is N and Z is CH, or where W is CH and Z is N.
 41. The compound of claim 1, having formula (Ie):

or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein: R^(1e) is —CHQR, Q is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, —OR, —CH₂C(O)OR, —C(O)OR, —C(O)NHR, —OC(O)R, —CX₃, —CX₂H, —C(X)H₂, —CN, —N(R)₂, —N(R)C(O)R, —N(R)C(O)OR, or —N(R)S(O)₂R; and each R^(1e) and/or Q is optionally substituted with one or more R^(q).
 42. The compound of claim 41, wherein Q is C₁₋₆ alkyl, aryl, cycloalkyl, heterocyclyl, —N(R)C(O)R, or —N(R)C(O)OR.
 43. The compound of claim 42, wherein R is independently H, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, alkylamino, —(CH₂)_(n)R′, X, aryl, cycloalkyl, or heterocyclyl.
 44. The compound of claim 41, wherein R⁶ is X, —CX₃, —CX₂H, or —C(X)H₂.
 45. The compound of claim 44, wherein R⁶ is —CF₃, —CF₂H, or CFH₂.
 46. The compound of claim 41, wherein R^(x) is H.
 47. The compound of claim 41, wherein W is N and Z is CH, or where W is CH and Z is N.
 48. The compound of claim 1, having formula (If):

or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein: R^(w) or R^(z) is independently C₁₋₆ alkyl, C₂₋₆ alkenyl, C₂₋₆ alkynyl, H, aryl, cycloalkyl, heteroaryl, or heterocyclyl.
 49. The compound of claim 48, wherein R⁶ is X, —CX₃, —CX₂H, or —C(X)H₂.
 50. The compound of claim 49, wherein R⁶ is —CF₃, —CF₂H, or CFH₂.
 51. The compound of claim 48, wherein R^(w) and R^(z) are both H.
 52. The compound of claim 48, wherein R^(x) is H.
 53. A compound selected from any one of the compounds listed in Table I, or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof.
 54. A pharmaceutical composition comprising the compound of claim 1, or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof and at least one pharmaceutically acceptable excipient.
 55. A method of modulating a Mas-Related G-Protein Receptor (MRGPR) X2 or a MRGPR X2 ortholog by contacting MRGPR X2 or MRGPR X2 ortholog with an effective amount of the pharmaceutical composition of claim
 54. 56. A method of treating a MRGPR X2 or a MRGPR X2 ortholog dependent condition by administering to a subject in need thereof an effective amount of the pharmaceutical composition of claim
 54. 57. A method of treating a pseudo-allergic reaction, an itch associated condition, a pain associated condition, an inflammatory or autoimmune disorder by administering to a subject in need thereof an effective amount of the pharmaceutical composition of claim
 54. 58-61. (canceled) 